A quiet, glowing gas cloud has been hiding in plain sight not far from Earth. For decades, astronomers have predicted that ...

A fluffy, Jupiter-sized planet may be triggering deadly flares from its star, leading to the slow destruction of its own atmosphere.

Spacecraft are not like the starships you see in movies. There is no endless supply of dilithium or hypermatter that lets you ...

A new object that is believed to be from beyond the solar system has been seen by scientists, according to astronomers. It ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Celebrate the Fourth with the Fireworks Galaxy, then check out the Demon Star Algol and the Full Buck Moon in the sky this ...

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

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

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