USA Rare Earth stock rose early Wednesday after the company announced U.K. approval for its purchase of Less Common Metals. USA Rare Earth stock was up 1.2% at $17.98 in early trading, while the S&P 500 and Dow Jones Industrial Average gained 0.2% and 0.5%, respectively.

Xenomorphs, Facehuggers, and Eye Midges have only just begun their horrifying work.

The asteroids are as large as around 75 and 91 feet in diameter, according to the Center for Near Earth Object Studies.

In a new book, NASA astrobiologist Caleb Scharf says the fate of life on Earth may hinge on leaving our planet behind

When an asteroid threatens Earth, astronomers use a rating called the Torino scale to communicate the risk. Richard Binzel, who invented the scale, tells New Scientist about his 50-year career in plan

" Alien: Earth" arrived on FX and Hulu on August 12 and has emerged as a smash hit for creator Noah Hawley. The series not only adapted well-known facts in the "Alien" franchise, but brought the threat of Xenomorphs to Earth for the very first time.

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, what happened to the Red Planet, and could it happen to Earth?