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

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.

Astronomers found 'heavy water' in interstellar comet 3I/ATLAS, suggesting it formed in a cold, unusual environment beyond ...

Minuscule silicon wafers propelled by lasers could be used to steer light sails, helping them travel beyond the solar system ...

The second wave of observations, conducted since December 2025, have allowed scientists to better characterize the chemical ...

NASA’s Psyche spacecraft is using a daring close flyby of Mars to slingshot toward one of the solar system’s strangest ...

We already knew interstellar comet 3I/ATLAS came from somewhere far beyond our solar system. Now scientists have more information on how alien that somewhere really is - a corner of the universe ...