The interstellar comet 3I/ATLAS, discovered in July 2025, is spinning at a rate that defies current scientific understanding, ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

To enjoy the Geminid show, bundle up and venture away from city lights, which can drown out fireballs. The meteor shower will ...

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

WASHINGTON — One of the best and brightest celestial displays of the year is about to peak this weekend. The Geminids, an ...

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

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

A flaring black hole whips up ultra-fast winds of more than 37,000 miles per SECOND, reveals new research. X-ray space ...

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

NASA’s Hubble Space Telescope captured a deeper look at interstellar comet 3I/ATLAS, with its Wide Field Camera 3 instrument, ...