NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

Interstellar comet 3I/ATLAS is approaching Earth on December 19 but NASA has clarified that it does not pose any threat to ...

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

Hubble Space Telescope can "only see the universe in shades of grey," according to NASA's Goddard Space Flight Center. Learn how the imagery is processed into amazing color views of the cosmos. Credit ...

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...

In a remarkable event capturing the attention of astronomers and space enthusiasts, interstellar comet 3I/ATLAS has been making its way through our solar system, presenting a unique opportunity to ...

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...

NASA reveals the true, bizarre reason for the 3I/ATLAS comet's 16.16-hour pulse. Scientists link the interstellar object's ...

For the first time, astronomers have observed ultra-fast winds emerging from a black hole in a distant galaxy, shedding new ...

Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled out yet. One involves a medium-size black hole, thousands of times heavier ...

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