Carl Sagan famously said that "We're all made of star stuff." But he didn't elaborate on how that actually happened. Yes, ...

Interstellar Comet 3I/ATLAS makes its closest, safe approach to Earth on Dec. 19. Learn how this rare visitor reveals secrets ...

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Spectroscopic data from NASA’s JWST suggest the disk contains the raw materials for ...

The interstellar comet known as 3I/Atlas will pass within 167 million miles of our planet Friday – the closest it gets on its ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

Interstellar comet 3I/ATLAS makes its closest Earth approach on Dec. 19, offering astronomers a rare chance to study a visitor from beyond the solar system ...

The passage of the interstellar object known as 3I/ATLAS through the inner solar system is prompting scientists and planetary ...

The world's largest planetary defense drill is underway as scientists prepare for 3I/ATLAs to make its closest pass by Earth ...

Astronomers using NASA’s James Webb Space Telescope have found the strongest evidence yet that a rocky planet outside our ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

A stray comet will make its closest approach to Earth this week in one last hurrah before racing back toward interstellar ...

The comet will come much closer to Jupiter in March, zipping within 33 million miles (53 million kilometers). It will be the ...