Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute in New York City.
To the unaided human eye, the night sky is resplendent with over 9,000 individual points of light, but that perspective covers only a bare fraction of the, which is about 4.25 light-years away. The closest star in this three-star system is Proxima Centauri, but because it's aThe farthest star that's visible to the naked eye is V762 Cas, a variable star sitting a whopping 16,000 light-years away.
Some flashes and explosions soar to incredible levels of brightness, making them temporarily visible even at extreme distances. For example, in 2008, the gamma-ray burstfor about 30 seconds, despite going off over 7.5 billion light-years away. That means that when the light of thisBreaking space news, the latest updates on rocket launches, skywatching events and more!perfected the astronomical telescope in the early 1600s, the universe opened up before us.
The James Webb Space Telescope's NIRCam instrument reveals a 50 light-years-wide portion of the Milky Way’s dense center. An estimated 500,000 stars shine in this image of the Sagittarius C region, along with some as-yet unidentified features. But nature has given us a little trick that we can use to occasionally push farther into the cosmos. When light from a distant star or galaxy passes through a massive cluster, the, which currently sits over 28 billion light-years away.
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