The most recently observed stellar explosion in our neighborhood
was Kepler’s supernova, spotted 400 years ago. Scientists using
a telescope atop a Hawaiian volcano have detected a pair of
extra-bright supernovae, or star explosions, one of which is the
oldest, most-distant supernova ever detected. That explosion
occurred 12 billion years ago, making it a billion years older
than the oldest supernova ever seen before. Because they are so
bright—about 10 to 100 times brighter than most supernovae—these
superluminous supernovae extend the limit on how far scientists
can look back in time when they study the stars, whose light
takes so long to reach us that what they are showing us is a
picture of the universe in the past. With these results,
published in Nature, scientists are peering closer than ever
before to the time of the Big Bang, 13.7 billion years ago. Read
More Its’ time for another mind-blowing, record-breaking
discovery by the Hubble Space Telescope. This time, it’s
creeping closer than ever toward t