AssetID: 53442348
Headline: UNCAPTIONED: Astronomers Discover Unusual Galaxy That Should Not Exist
Caption: Astronomers Discover Unusual Galaxy That Should Not Exist. 'Newsweek' reports that NASA's James Webb Telescope has discovered a new galaxy that shouldn't exist. The dwarf galaxy, referred to as PEARLSDG, was spotted in an area of space where astronomers were not expecting to find anything. A new paper in the 'Astrophysical Journal Letters' details the strange properties of PEARLSDG, chiefly how it appears to not be forming new stars. Normally, dwarf galaxies orbit larger galaxies, which influences their formation. Our Milky Way is orbited by about 20 dwarf galaxies, like the Small Magellanic Cloud and Triangulum II. PEARLSDG appears to not be interacting with any nearby galaxies, while also not forming any new stars. Scientists now believe PEARLSDG is a rare isolated quiescent galaxy. "These types of isolated quiescent dwarf galaxies haven't really been seen before except for relatively few cases." "They are not really expected to exist given our current understanding of galaxy evolution, so the fact that we see this object helps us improve our theories for galaxy formation." "Generally, dwarf galaxies that are out there by themselves are continuing to form new stars." Tim Carleton, paper co-author and an assistant research scientist at Arizona State University, via 'Newsweek'. 'Newsweek' reports that the findings suggest that astronomers have much more to learn about dwarf galaxies, including how they evolve over time. THIS VIDEO MUST NOT BE EDITED FOR LENGTH TO COMBINE WITH OTHER CONTENT
Keywords: Astronomers,Discover,Unusual,Galaxy,Not exist,Space,James Webb Telescope,Dwarf galaxy,NASA,PEARLSDG,Spotted,Area,Orbit,Formation,Influences
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