The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...

Astronomers have detected a massive object moving in a synchronized path behind Earth. Early measurements suggest it has been ...

The discovery of a new celestial object in the Earth's neighborhood has created a buzz online asking whether the planet now has a second moon in its orbit. Any thoughts that Earth is now going to be ...

At any given moment, more than 10,000 satellites are whizzing around the planet at roughly 17,000 miles per hour. This constellation of machinery is the technological backbone of modern life, making ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The first humans to orbit over Earth's north and south poles are sending back images from their ...

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research. The newly ...