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Newest Information : Hubble Space Telescope Spots Farthest Particular person Star Ever Seen
Setting a brand new distance report, astronomers utilizing NASA’s Hubble Space Telescope have found an infinite blue star nicknamed “Icarus”, the farthest particular person star ever seen.
In addition they used Icarus to check one idea of darkish matter and to probe the make-up of a foreground galaxy cluster, the US house company mentioned on Tuesday.
“That is the primary time we’re seeing a magnified, particular person star. You’ll be able to see particular person galaxies on the market, however this star is at the least 100 occasions farther away than the subsequent particular person star we will research, apart from supernova explosions,” defined Patrick Kelly, research chief from College of Minnesota, Twin Cities.
The star, harboured in a really distant spiral galaxy, is so far-off that its gentle has taken 9 billion years to achieve Earth.
Icarus, whose official identify is “MACS J1149+2223 Lensed Star 1”, is just seen as a result of it’s being magnified by the gravity of an enormous galaxy cluster — positioned about 5 billion light-years from Earth.
In gravitational lensing, gravity from a foreground, huge cluster of galaxies acts as a pure lens in house, bending and amplifying gentle.
The invention of Icarus by means of gravitational lensing has initiated a brand new method for astronomers to review particular person stars in distant galaxies.
These observations present a uncommon, detailed have a look at how stars evolve, particularly probably the most luminous stars, NASA mentioned.
Detecting the amplification of a single, pinpoint background star offered a singular alternative to check the character of darkish matter within the cluster.
Darkish matter is an invisible materials that makes up a lot of the universe’s mass.
When NASA’s James Webb Space Telescope is launched, astronomers anticipate finding many extra stars like Icarus.
“Webb’s extraordinary sensitivity will permit measurement of much more particulars, together with whether or not these distant stars are rotating. Such magnified stars might even be discovered to be pretty frequent,” NASA added.
Overview : Hubble Space Telescope Spots Farthest Particular person Star Ever Seen
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