The European Space Agency (ESA) will launch its bold "Comet Interceptor" Mission after 3I/ATLAS became the third interstellar ...

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

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 ...

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

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.

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