Earth may have been exposed to interstellar clouds which may have changed the chemistry of the planet's atmosphere and led to the development of multiple ice ages, researchers suggest. Astrophysicists ...

A comet from another star system is sweeping through our cosmic backyard and, for the first time, astronomers have picked up ...

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The Voyager 2 spacecraft burst out of the bubble of gases expanding from the sun and into the wild of the Milky Way a year ago. It was the second spacecraft to cross that boundary and directly observe ...

Image: The inner, yellow portion of HD 61005’s disk spans 5.4 billion miles, or about the width of Neptune’s orbit in our own solar system. This false-color Hubble view masks the star’s direct light ...

Editor's note: NASA and SpaceX are now targeting Wednesday, Sept. 24, at 7:30 a.m. for the launch of NASA and the National Oceanic and Atmospheric Administration (NOAA) space weather missions. Much as ...

Thanks to the Voyager probes, NASA has discovered that the line between our Solar System and deep space looks nothing like we expected. Share on Facebook (opens in a new window) Share on X (opens in a ...

The night sky has always been a place where we can see our biggest mysteries. But the arrival of the third known interstellar ...

Interstellar comet 3I/ATLAS is leaving the Solar System, but its rare wobbling anti-tail is raising new questions for ...

For the second time in history, a human-made object has reached the space between the stars. NASA’s Voyager 2 probe now has exited the heliosphere – the protective bubble of particles and magnetic ...