Its’ time for another mind-blowing, record-breaking discovery by the Hubble Space Telescope. This time, it’s creeping closer than ever toward the beginning of the universe.
Astronomers have just announced they have discovered what may be the most distant galaxy ever seen, smashing the previous record holder. This galaxy is at a mind-crushing distance of 13.2 billion light years from Earth, making it not just the most distant galaxy but also the most distant extant object ever detected!
Named UDFj-39546284, the galaxy is seen as it was just 480 million years after the Universe itself formed! The previous record holder — which was announced just last October — was 13.1 billion light years away. This new galaxy beats that by 120 million light years, a substantial amount. Mind you, these galaxies formed not long after the Big Bang, which happened 13.73 billion years ago. We think the very first galaxies started forming 200 – 300 million years after the Bang; if that’s correct then we won’t see any galaxies more than about 13.5 billion light years away. Going from 13.1 to 13.2 billion light years represents a big jump closer to that ultimate limit!
For plenty more about this, check out the rest of Phil’s post at Bad Astronomy.
Bad Astronomy: How Deep Is the Universe?
Bad Astronomy: Galaxy Cluster at the Edge of the Universe
80beats: Planck Telescope Searchers the Super-Cold Universe, Finds Neat Stuff
Image: NASA, ESA