A comet from another star system is swinging by Mars as a fleet of spacecraft trains its sights on the interstellar visitor.

Comet 3I/ATLAS, the third known interstellar visitor to the Solar System, will get closest to one particular planet in the Solar System. Bad news: it is not Earth, so we can’t get the best view of ...

The asteroid is projected to come within 865,000 miles of Earth—nearly five times closer than the orbit of the moon.

Donald Trump has seized on the government shutdown as an opportunity to reshape the federal workforce and punish detractors.

Astronomers have identified an enormous "growth spurt" in a so-called rogue planet. Unlike the planets in our solar system, ...

Using the European Southern Observatory 's (ESO) Very Large Telescope (VLT), astronomers have caught it pulling in gas and ...

A free-floating planet has been seen devouring astonishing amounts of matter, hinting that stars and planets are more alike ...

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record rate of 6.6 billion tons per second.

A young rogue planet 620 light-years from Earth has baffled scientists as it puts on a record-breaking 'growth spurt'.

LONDON (AP) — Police say two victims have died and three others are in serious condition after UK synagogue attack. The incident, which took place on Yom Kippur, the holiest day in the Jewish calendar ...

The U.S. government is taking a minority stake in Lithium Americas, a company that is developing one of the world’s largest ...

He recently led a nationwide climate day of action, Sun Day, and his new book is “Here Comes the Sun: A Last Chance for ...