The James Webb Space Telescope and other international observatories have spotted a 13-billion-year-old supernova. On Tuesday ...

A faint, tiny flash of red light glimpsed at the Cosmic Dawn more than 13 billion years ago has smashed the record for the ...

For over two decades, cosmologists have believed that the universe is expanding at an accelerating pace, driven by a ...

What can imaging supernovae (plural for supernova) explosions teach astronomers about their behavior and physical ...

NASA’s James Webb Telescope discovers the oldest supernova ever seen, offering insights into early universe star formation ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

NASA’s Webb Telescope detects the earliest known supernova, GRB 250314A, 730 million years after the Big Bang, capturing its host galaxy and providing unprecedented early-universe observations.

Scientists have made an exciting breakthrough in understanding how the universe creates the ingredients needed for life. A ...

Astronomers from the University of California (UC), Berkeley and elsewhere have performed spectroscopic and photometric study ...

For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Some of the elements used by living systems are far more abundant in Cassiopeia A than we thought, hinting that some parts of ...