NASA's twin Voyager 1 and Voyager 2 spacecraft, both running on nuclear power, now have access to just a portion of the 470 ...

Interstellar objects are no longer rare anomalies they are becoming a pattern. More visitors from deep space are being ...

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

The twinkling stars in the night sky are not just beautiful to look at. Their flickering reveals something about the varying ...

The farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could boost the aging probe’s impressive lifespan.

The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.

Nasa’s interstellar space probe Voyager 1 is losing power - US space agency says it has a ‘far-out plan’ to save the most distant human-made object in existence ...

A rare comet from another star system is revealing just how different alien solar systems may be from our own.

Dual-spacecraft feat: Juice and Europa Clipper captured simultaneous ultraviolet images of both hemispheres of comet 3I/ATLAS, revealing contrasting gas and dust features. Heavy water clue: Analysis ...

When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust—known as interstellar clouds.

Add Yahoo as a preferred source to see more of our stories on Google. The USS Enterprise starship traveling at warp speed in Star Trek - Paramount Pictures You know how it goes. You hop into the ...