The comet should remain viewable through telescopes until September as it approaches the Sun, then emerge again in December on its outbound leg.

Last week the James Webb Space Telescope captured a direct image of what they believe to be a previously unknown exoplanet ...

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

A comet has entered the Solar System from interstellar space and will pass through the inner planets later this year, NASA ...

The James Webb Space Telescope captured asteroid 10199 Chariklo occult the star Gaia DR3 6873519665992128512. It was the ...

The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

See the iconic Pillars of Creation in this 3D visualization created from James Webb and Hubble Space Telescope data. Credits Producer Greg Bacon (STScI), Frank Summers (STScI), NASA's Universe of ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth -- but closer to the red planet than us at a safe 150 million miles (240 ...

The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...