#spothubble

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Three million billion stars 🌟 but who’s counting?! This is a #repost from NASA ( @nasa ) via @PhotoAroundApp Millions AND billions! This enormous galaxy cluster, seen by our Hubble Space Telescope (@NASAHubble), contains the mass of a staggering three million billion suns! Nicknamed “El Gordo” (“the Fat One” in Spanish), it is the largest, hottest and brightest X-ray galaxy ever discovered in the distant Universe. Galaxy clusters are the largest objects in the Universe that are bound together by gravity. They form over billions of years as smaller groups of galaxies slowly come together. In 2012, observations showed that El Gordo is actually composed of two galaxy clusters colliding at millions of kilometers per hour. The formation of galaxy clusters depends heavily on dark matter and dark energy; studying such clusters can therefore help shed light on these elusive phenomena. In 2014, Hubble found that most of El Gordo’s mass is concealed in the form of dark matter. Evidence suggests that El Gordo’s “normal” matter — largely composed of hot gas that is bright in the X-ray wavelength domain — is being torn from the dark matter in the collision. The hot gas is slowing down, while the dark matter is not. Credit: ESA/Hubble & NASA, RELICS #nasa #space #hubble #spothubble #galaxy #cluster #galaxycluster #milliion #billion #telescope #elgordo #observe #science #discover #darkmatter #universe #astrophysics #solarsystem #light #beautiful #pictureoftheday #Stars #Galaxies #Wow

This glittering ball of stars is a globular cluster lying toward the center of the Large Magellanic Cloud — one of our closest cosmic neighbors. Seen by the Hubble Space Telescope (@NASAHubble), it hosts an extremely rich population of star clusters making it an ideal laboratory for investigating star formation. Discovered in November 1834 by British astronomer John Herschel, NGC 1898 has been scrutinized numerous times by the NASA/ESA Hubble Space Telescope. Today we know that globular clusters are some of the oldest known objects in the universe and that they are relics of the first epochs of galaxy formation. While we already have a pretty good picture on the globular clusters of the Milky Way — still with many unanswered questions — our studies on globular clusters in nearby dwarf galaxies just started. The observations of NGC 1898 will help to determine whether their properties are similar to the ones found in the Milky Way, or if they have different features, due to being in a different cosmic environment. Image Credit: ESA/Hubble & NASA #nasa #space #hubble #spothubble #spacetelescope #telescope #cluster #star #galaxy #universe #solarsystem #largemagellaniccloud #science https://www.instagram.com/p/BpJhiNOFEvg/?utm_source=ig_tumblr_share&igshid=1f5ai72ko7isi

good night. #Repost @nasa • • • These dots of color make up one of the most comprehensive portraits yet of the universe’s evolutionary history. This mosaic, captured with the ultraviolet vision of our Hubble Space Telescope (@NASAHubble), features approximately 15,000 galaxies, about 12,000 of which are star-forming – widely distributed in time and space. Hubble’s ultraviolet vision opens a new window on the evolving universe, tracking the birth of stars over the last 11 billion years back to the cosmos’ busiest star-forming period, which happened about 3 billion years after the big bang. Because Earth’s atmosphere filters most ultraviolet light, Hubble can provide some of the most sensitive space-based ultraviolet observations possible. Ultraviolet light has been the missing piece to the cosmic puzzle. Now, combined with infrared and visible-light data from Hubble and other space and ground-based telescopes, astronomers have assembled one of the most comprehensive portraits yet of the universe’s evolutionary history. Credit: NASA, ESA, P. Oesch (University of Geneva), and M. Montes (University of New South Wales) #nasa #space #hubble #spothubble #telescope #galaxy #stars #forming #universe #solarsystem #planets #astronomers #bigbang #earth #ultraviolet #science #portrait #mosaic

#Repost @nasa • • • • • A treasure trove of wonders! With bright stars from the Milky Way sparkling in the foreground to the magnificent swirls of several spiral galaxies and a glowing assortment of objects at the center, take a look at all that makes up this massive galaxy cluster in this new image from the Hubble Space Telescope (@NASAHubble). Such clusters are the biggest objects in the universe that are held together by gravity and can contain thousands of galaxies of all shapes and sizes. Typically, they have a mass of about one million billion times the mass of the Sun — unimaginably huge! Their incredible mass makes clusters very useful natural tools to test theories in astronomy, such as Einstein’s theory of general relativity. This tells us that objects with mass warp the fabric of space-time around them; the more massive the object, the greater the distortion. An enormous galaxy cluster like this one therefore has a huge influence on the space-time around it, even distorting the light from more distant galaxies to change a galaxy’s apparent shape, creating multiple images, and amplifying the galaxy’s light — a phenomenon called gravitational lensing. Image Credit: @EuropeanSpaceAgency & NASA, RELICS #nasa #space #hubble #spothubble #webb #universe #science #distant #galaxies #clusters #celestial #stars #cosmic #origins #exploration #picoftheday #pictureoftheday

Regrann from @nasa - Twinkle, twinkle, many stars! ⭐️ Spotted by our @NASAHubble telescope roughly in the direction of the center of the Milky Way, is this gravitationally bound collection of stars, also known as a globular cluster. Globular clusters contain hundreds of thousands of stars that are thought to have formed at roughly the same time. Studies have shown that the globular cluster seen here is home to an aging population of stars. Most globular clusters orbiting the Milky Way are estimated to be over 10 billion years old; as a result, they contain some of the oldest stars in our galaxy, formed very early in the galaxy’s history. However, their role in galactic evolution is still a matter of study. Credit: NASA/ESA/Hubble #nasa #hubble #stars #stargazing #space #astronomy #spothubble #solarsystem #universe #galaxy #science #pictureoftheday #beautiful #light #picoftheday - #regrann

Even though its great distance, the clarity of this Hubble image brings NGC 6752 tantalizingly close.

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