jmetaB033211bc62ab3ec156743d58b050deff5ed897f31f5e7479aa504a17c53c04ebfb@196181c9af442c1177fed83ffcf9a3f9efed49fa58a0e17e5dab73126ebf9791rss.item metarss.netMª<item> <title>NASAâs Hubble Traces Dark Matter in Dwarf Galaxy Using Stellar Motions</title> <link>https://science.nasa.gov/missions/hubble/nasas-hubble-traces-dark-matter-in-dwarf-galaxy-using-stellar-motions/</link> <dc:creator><![CDATA[]]></dc:creator> <pubDate>Thu, 11 Jul 2024 14:00:05 +0000</pubDate> <category><![CDATA[Astrophysics]]></category> <category><![CDATA[Astrophysics Division]]></category> <category><![CDATA[Dark Matter]]></category> <category><![CDATA[Dark Matter & Dark Energy]]></category> <category><![CDATA[Goddard Space Flight Center]]></category> <category><![CDATA[Hubble Space Telescope]]></category> <category><![CDATA[Missions]]></category> <category><![CDATA[The Universe]]></category> <guid isPermaLink="false">https://science.nasa.gov/missions/hubble/nasas-hubble-traces-dark-matter-in-dwarf-galaxy-using-stellar-motions/</guid> <description><![CDATA[The qualities and behavior of dark matter, the invisible âglueâ of the universe, continue to be shrouded in mystery. Though galaxies are mostly made of dark matter, understanding how it is distributed within a galaxy offers clues to what this substance is, and how itâs relevant to a galaxyâs evolution. While computer simulations suggest dark [â¦]]]></description> <content:encoded><![CDATA[<div id="" class="hds-article-hero-header nasa-gb-align-full bg-carbon-90 width-full maxw-full color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-article-hero-header"> <div class="hds-cover-wrapper width-full maxw-full minh-tablet grid-container minh-tablet flex-column padding-0"> <div class="hds-foreground-wrapper display-flex flex-direction-column"> <div class="grid-container grid-container-block margin-top-auto width-full maxw-desktop-lg padding-y-9 padding-x-3 desktop:padding-x-0 z-400"> <div class="z-400 grid-col-12 tablet:grid-col-12 desktop:grid-col-7 z-400"> <div class="margin-0"> <div class="label color-spacesuit-white margin-bottom-2">5 Min Read</div> <h1 class="heading-41 line-height-md color-spacesuit-white-important"> NASAâs Hubble Traces Dark Matter in Dwarf Galaxy Using Stellar Motions </h1> </p></div> </p></div> <div class="grid-col-12 tablet:grid-col-12 desktop:grid-col-5"></div> <div class="skrim-overlay skrim-left mobile-skrim-top z-200"></div> <figure class="hds-media-background "><img fetchpriority="high" decoding="async" width="1494" height="1536" src="https://science.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?w=1494" class="attachment-1536x1536 size-1536x1536" alt="Distant and nearby galaxies dot an inky-black background. Bright foreground stars hold four diffraction spikes." style="transform: scale(1); transform-origin: 44% 26%; object-position: 44% 26%; object-fit: cover;" block_context="nasa-block" srcset="https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg 1945w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=292,300 292w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=768,790 768w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=996,1024 996w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=1494,1536 1494w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=50,50 50w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=389,400 389w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=584,600 584w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=875,900 875w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-hubblefield1-stsci-01j01tdv4k7k0qh3t39x9vt5px.jpg?resize=1167,1200 1167w" sizes="(max-width: 1494px) 100vw, 1494px" loading="eager" /></figure> </p></div> </p></div> </p></div> <div class="padding-y-3 padding-x-3"> <div class="grid-container grid-container-block padding-x-0"><figcaption class="hds-caption maxw-mobile"> <div class="hds-caption-text p-sm margin-0 color-carbon-30"> <div><figcaption>This NASA Hubble Space Telescope image reveals a section of the Draco dwarf galaxy.</figcaption></div> </p></div> <div class="hds-credits color-spacesuit-white-important"> <span>Credits: </span><br /> <span>NASA, ESA, Eduardo Vitral, Roeland van der Marel, and Sangmo Tony Sohn (STScI); Image processing: Joseph DePasquale (STScI)</span> </div> </figcaption></div> </p></div> </p></div> <p>The qualities and behavior of dark matter, the invisible âglueâ of the universe, continue to be shrouded in mystery. Though galaxies are mostly made of dark matter, understanding how it is distributed within a galaxy offers clues to what this substance is, and how itâs relevant to a galaxyâs evolution.</p> <p>While computer simulations suggest dark matter should pile up in a galaxyâs center, called a density cusp, many previous telescopic observations have indicated that it is instead more evenly dispersed throughout a galaxy. The reason for this tension between model and observation continues to puzzle astronomers, reinforcing the mystery of dark matter.</p> <p>A team of astronomers has turned toward NASAâs <a href="https://science.nasa.gov/mission/hubble/" rel="noopener">Hubble Space Telescope</a> to try and clarify this debate by measuring the dynamic motions of stars within the Draco dwarf galaxy, a system located roughly 250,000 light-years from Earth. Using observations that spanned 18 years, they succeeded in building the most accurate three-dimensional understanding of starsâ movements within the diminutive galaxy. This required scouring nearly two decades of Hubble archival observations of the Draco galaxy.</p> <div id="" class="hds-media hds-module wp-block-image"> <div class="margin-left-auto margin-right-auto nasa-block-align-wide"> <div class="hds-media-wrapper margin-left-auto margin-right-auto"> <figure class="hds-media-inner hds-cover-wrapper hds-media-ratio-none "><a href="https://science.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg" rel="noopener"><img loading="lazy" decoding="async" width="2000" height="1358" src="https://science.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?w=2000" class="attachment-2048x2048 size-2048x2048" alt="A three-paneled image shows different perspectives of the Draco dwarf spheroidal galaxy. The first panel fill's the left half of the image. It is a Digitized Sky Survey image of the region. The upper-right and lower-right images are zoomed-in Hubble images of areas denoted by white boxes in the left-side image. Each of the images holds a field of distant galaxies and foreground stars on a inky-black background." style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" block_context="nasa-block" srcset="https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg 2000w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=300,204 300w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=768,521 768w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=1024,695 1024w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=1536,1043 1536w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=400,272 400w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=600,407 600w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=900,611 900w, https://smd-cms.nasa.gov/wp-content/uploads/2024/07/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j.jpg?resize=1200,815 1200w" sizes="(max-width: 2000px) 100vw, 2000px" /></a></figure><figcaption class="hds-caption padding-y-2"> <div class="hds-caption-text p-sm margin-0">A team of astronomers analyzed observations by NASAâs Hubble Space Telescope taken over a span of 18 years to measure the dynamic motions of stars within the Draco dwarf galaxy. The telescopeâs extensive baseline and data archive enabled the team to build the most accurate three-dimensional map of the starsâ movements within the system. These improved measurements are helping to shed âlightâ on the mysterious qualities and behavior of dark matter, the universeâs invisible âglue.â The left image is from the Digitized Sky Survey (DSS). It presents a wider view of the region. The two right-side images are Hubble views.</div> <div class="hds-credits">NASA, ESA, Eduardo Vitral, Roeland van der Marel, and Sangmo Tony Sohn (STScI), DSS; Image processing: Joseph DePasquale (STScI)</div> </figcaption></div> </div> </div> <div id="" class="nasa-gb-align-center nasa-button-link padding-y-1 padding-x-0 hds-module wp-block-nasa-blocks-related-link"> <a href="https://science.nasa.gov/image-detail/hubble-dracodwarf-darkmatter-annotated-stsci-01j01t760tzq2tcweb5ey1gg6j/" target="_self" class="button-primary button-primary-md link-external-true" aria-label="Download this image" rel="noopener"><br /> <span class="line-height-alt-1">Download this image</span><br /> <svg viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><circle class="button-primary-circle" cx="16" cy="16" r="16"></circle><path d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z" class="color-spacesuit-white"></path></svg><br /> </a></p></div> <p>âOur models tend to agree more with a cusp-like structure, which aligns with cosmological models,â said Eduardo Vitral of the Space Telescope Science Institute (STScI) in Baltimore and lead author of the study. âWhile we cannot definitively say all galaxies contain a cusp-like dark matter distribution, itâs exciting to have such well measured data that surpasses anything weâve had before.â</p> <h1 class="wp-block-heading" id="h-charting-the-movements-of-stars">Charting the Movements of Stars</h1> <p>To learn about dark matter within a galaxy, scientists can look to its stars and their movements that are dominated by the pull of dark matter. A common approach to measure the speed of objects moving in space is by the Doppler Effect â an observed change of the wavelength of light if a star is approaching or receding from Earth. Although this line-of-sight velocity can provide valuable insight, only so much can be gleaned from this one-dimensional source of information.</p> <p>Besides moving closer or further away from us, stars also move across the sky, measured as their proper motion. By combining line-of-sight velocity with proper motions, the team created an unprecedented analysis of the starsâ 3D movements.</p> <p>âImprovements in data and improvements in modeling usually go hand in hand,â explained Roeland van der Marel of STScI, a co-author of the paper who initiated the study more than 10 years ago. âIf you donât have very sophisticated data or only one-dimensional data, then relatively straightforward models can often fit. The more dimensions and complexity of data you gather, the more complex your models need to be to truly capture all the subtleties of the data.â</p> <h1 class="wp-block-heading" id="h-a-scientific-marathon-not-a-sprint">A Scientific Marathon (Not a Sprint)</h1> <p>Since dwarf galaxies are known to have a higher proportion of dark matter content than other types of galaxies, the team honed in on the Draco dwarf galaxy, which is a relatively small and spheroidal nearby satellite of the Milky Way galaxy.</p> <p>âWhen measuring proper motions, you note the position of a star at one epoch and then many years later measure the position of that same star. You measure the displacement to determine how much it moved,â explained Sangmo Tony Sohn of STScI, another co-author of the paper and the principal investigator of the latest observational program. âFor this kind of observation, the longer you wait, the better you can measure the stars shifting.â</p> <p>The team analyzed a series of epochs spanning from 2004 to 2022, an extensive baseline that only Hubble could offer, due to the combination of its sharp stable vision and record time in operation. The telescopeâs rich data archive helped decrease the level of uncertainty in the measurement of the starsâ proper motions. The precision is equivalent to measuring an annual shift a little less than the width of a golf ball as seen on the Moon from Earth.</p> <p>With three dimensions of data, the team reduced the amount of assumptions applied in previous studies and considered characteristics specific to the galaxy â such as its rotation, and distribution of its stars and dark matter â in their own modeling efforts.</p> <h1 class="wp-block-heading" id="h-an-exciting-future">An Exciting Future</h1> <p>The methodologies and models developed for the Draco dwarf galaxy can be applied to other galaxies in the future. The team is already analyzing Hubble observations of the Sculptor dwarf galaxy and the Ursa Minor dwarf galaxy.</p> <p>Studying dark matter requires observing different galactic environments, and also entails collaboration across different space telescope missions. For example, NASAâs upcoming <a href="https://science.nasa.gov/mission/roman-space-telescope/" rel="noopener">Nancy Grace Roman Space Telescope</a> will help reveal new details of <a href="https://www.nasa.gov/missions/roman-space-telescope/nasas-roman-to-search-for-signs-of-dark-matter-clumps/">dark matterâs properties among different galaxies</a> thanks to its ability to survey large swaths of the sky.</p> <p>âThis kind of study is a long-term investment and requires a lot of patience,â reflected Vitral. âWeâre able to do this science because of all the planning that was done throughout the years to actually gather these data. The insights weâve collected are the result of a larger group of researchers that has been working on these things for many years.â</p> <p>These <a href="https://doi.org/10.3847/1538-4357/ad571c" target="_blank" rel="noreferrer noopener">results are accepted for publication</a> in <a href="https://iopscience.iop.org/journal/0004-637X" target="_blank" rel="noreferrer noopener">The Astrophysical Journal</a>.</p> <p>The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASAâs Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, Colorado, also supports mission operations at Goddard. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.</p> <h1 class="wp-block-heading" id="h-explore-more">Explore More</h1> <div id="" class="nasa-gb-align-center nasa-button-link padding-y-1 padding-x-0 hds-module wp-block-nasa-blocks-related-link"> <a href="https://science.nasa.gov/mission/hubble/" target="_self" class="button-primary button-primary-md link-external-true" aria-label="Hubble Space Telescope" rel="noopener"><br /> <span class="line-height-alt-1">Hubble Space Telescope</span><br /> <svg viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><circle class="button-primary-circle" cx="16" cy="16" r="16"></circle><path d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z" class="color-spacesuit-white"></path></svg><br /> </a></p></div> <div id="" class="nasa-gb-align-center 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class="grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0"> <div class="padding-top-3 border-top-1px border-color-carbon-black"> <div class="margin-bottom-2"> <h2 class="heading-14">Details</h2> </p></div> <div class="grid-row margin-bottom-3"> <div class="grid-col-4"> <div class="subheading">Last Updated</div> </p></div> <div class="grid-col-8">Jul 11, 2024</div> </p></div> <div class="grid-row margin-bottom-3"> <div class="grid-col-4"> <div class="subheading">Editor</div> </div> <div class="grid-col-8">Andrea Gianopoulos</div> </div> <div class="grid-row"> <div class="grid-col-4"> <div class="subheading">Location</div> </div> <div class="grid-col-8"><a class="hds-location-tag-name" href="https://nasa.gov/goddard" rel="noopener"><span class="hds-meta-heading">NASA Goddard Space Flight Center</span></a></div> </div></div> </p></div> <div class="grid-col-12 desktop:grid-col-5 padding-right-4 margin-bottom-5 desktop:margin-bottom-0"> <div class="padding-top-3 border-top-1px border-color-carbon-black "> <div class="margin-bottom-2"> <h2 class="heading-14">Related Terms</h2> </div> <ul class="article-tags"> <li class="article-tag"><a href="https://science.nasa.gov/astrophysics/" rel="noopener">Astrophysics</a></li> <li class="article-tag"><a href="https://science.nasa.gov/astrophysics/" rel="noopener">Astrophysics Division</a></li> <li class="article-tag"><a href="https://science.nasa.gov/category/dark-matter/" rel="noopener">Dark Matter</a></li> <li class="article-tag"><a href="https://science.nasa.gov/universe/dark-matter-dark-energy/" rel="noopener">Dark Matter & Dark Energy</a></li> <li class="article-tag"><a href="https://www.nasa.gov/goddard/">Goddard Space Flight Center</a></li> <li class="article-tag"><a href="https://science.nasa.gov/mission/hubble" rel="noopener">Hubble Space Telescope</a></li> <li class="article-tag"><a href="https://www.nasa.gov/nasa-missions/">Missions</a></li> <li class="article-tag"><a href="https://science.nasa.gov/universe/" rel="noopener">The Universe</a></li> </ul> </div> </div></div> </section></div> <div id="" class="hds-topic-cards nasa-gb-align-full maxw-full width-full padding-y-6 padding-x-3 color-mode-dark hds-module hds-module-full wp-block-nasa-blocks-topic-cards"> <div class="grid-container grid-container-block-lg padding-x-0"> <div class="grid-row flex-align-center margin-bottom-3"> <div class="desktop:grid-col-8 margin-bottom-2 desktop:margin-bottom-0"> <div class="label color-carbon-60 margin-bottom-2">Keep Exploring</div> <h2 class="heading-36 line-height-sm">Discover More Topics From NASA</h2> </p></div> </p></div> <div class="grid-row grid-gap-2 hds-topic-cards-wrapper"> <a href="https://science.nasa.gov/mission/hubble/" class="mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0" rel="noopener"></p> <div class="hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black"> <div class="skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200"> <div> <h3 class="hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1"> <span>Hubble Space Telescope</span><br /> <svg viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><circle class="color-nasa-red" cx="16" cy="16" r="16"></circle><path d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z" class="color-spacesuit-white"></path></svg><br /> </h3> <p class="margin-bottom-0 margin-top-2 color-carbon-20-important">Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.</p> </p></div> </p></div> <figure class="hds-media-background "><img loading="lazy" decoding="async" width="1512" height="1536" src="https://science.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?w=1512" class="attachment-1536x1536 size-1536x1536" alt="" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" block_context="nasa-block" srcset="https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg 4031w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=295,300 295w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=768,780 768w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=1008,1024 1008w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=1512,1536 1512w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=2016,2048 2016w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=50,50 50w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=394,400 394w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=591,600 591w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=886,900 886w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=1181,1200 1181w, https://smd-cms.nasa.gov/wp-content/uploads/2023/07/hubble-space-telescope-hst-6.jpg?resize=1969,2000 1969w" sizes="(max-width: 1512px) 100vw, 1512px" /></figure> </p></div> <p> </a><br /> <a href="https://science.nasa.gov/mission/hubble/science/science-highlights/shining-a-light-on-dark-matter/" class="mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0" rel="noopener"></p> <div class="hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black"> <div class="skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200"> <div> <p class="hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1"> <span>Shining a Light on Dark Matter</span><br /> <svg viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><circle class="color-nasa-red" cx="16" cy="16" r="16"></circle><path d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z" class="color-spacesuit-white"></path></svg> </p> </p></div> </p></div> <figure class="hds-media-background "><img loading="lazy" decoding="async" width="1517" height="1536" src="https://science.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?w=1517" class="attachment-1536x1536 size-1536x1536" alt="" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" block_context="nasa-block" srcset="https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp 3853w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=296,300 296w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=768,778 768w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=1011,1024 1011w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=1517,1536 1517w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=2022,2048 2022w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=50,50 50w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=100,100 100w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=395,400 395w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=592,600 592w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=889,900 889w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=1185,1200 1185w, https://smd-cms.nasa.gov/wp-content/uploads/2021/12/hubble-abell1689-darkmatter-heic1014a-jpg.webp?resize=1975,2000 1975w" sizes="(max-width: 1517px) 100vw, 1517px" /></figure> </p></div> <p> </a><br /> <a href="https://science.nasa.gov/universe/dark-matter-dark-energy/" class="mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0" rel="noopener"></p> <div class="hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black"> <div class="skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200"> <div> <p class="hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1"> <span>Dark Matter & Dark Energy</span><br /> <svg viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><circle class="color-nasa-red" cx="16" cy="16" r="16"></circle><path d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z" class="color-spacesuit-white"></path></svg> </p> </p></div> </p></div> <figure class="hds-media-background "><img loading="lazy" decoding="async" width="1280" height="909" src="https://science.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?w=1280" class="attachment-1536x1536 size-1536x1536" alt="" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" block_context="nasa-block" srcset="https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp 1280w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=300,213 300w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=768,545 768w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=1024,727 1024w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=400,284 400w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=600,426 600w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=900,639 900w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/coma-cluster-jpg.webp?resize=1200,852 1200w" sizes="(max-width: 1280px) 100vw, 1280px" /></figure> </p></div> <p> </a><br /> <a href="https://science.nasa.gov/mission/roman-space-telescope/" class="mobile:grid-col-12 tablet:grid-col-6 desktop:grid-col-3 topic-card margin-bottom-4 desktop:margin-bottom-0" rel="noopener"></p> <div class="hds-topic-card hds-cover-wrapper cover-hover-zoom bg-carbon-black"> <div class="skrim-overlay skrim-overlay-dark skrim-left mobile-skrim-top padding-3 display-flex flex-align-end flex-justify-start z-200"> <div> <p class="hds-topic-card-heading heading-29 color-spacesuit-white line-height-sm margin-top-0 margin-bottom-1"> <span>Roman</span><br /> <svg viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><circle class="color-nasa-red" cx="16" cy="16" r="16"></circle><path d="M8 16.956h12.604l-3.844 4.106 1.252 1.338L24 16l-5.988-6.4-1.252 1.338 3.844 4.106H8v1.912z" class="color-spacesuit-white"></path></svg> </p> </p></div> </p></div> <figure class="hds-media-background "><img loading="lazy" decoding="async" width="1536" height="1018" src="https://science.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?w=1536" class="attachment-1536x1536 size-1536x1536" alt="" style="transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;" block_context="nasa-block" srcset="https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp 2000w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=300,199 300w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=768,509 768w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=1024,678 1024w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=1536,1018 1536w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=400,265 400w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=600,398 600w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=900,596 900w, https://smd-cms.nasa.gov/wp-content/uploads/2023/06/edu-stem-stars-nancy-grace-roman-space-telescope-jpg.webp?resize=1200,795 1200w" sizes="(max-width: 1536px) 100vw, 1536px" /></figure> </p></div> <p> </a> </div> </p></div> </p></div> ]]></content:encoded> </item>
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