Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

Earth's orbit is an ellipse, not a perfect circle. Earth's distance from the Sun varies by about 3 million miles throughout the year. Earth's orbit's semimajor axis is approximately 93 million miles.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Which is why it’s fortunate there’s another orbit, even closer to Earth, that promises ...

DALLAS — Beginning Sept. 29, Earth will have a new celestial neighbor— a temporary "mini-moon." What scientists think is an asteroid named 2024 PT5 will orbit our planet in conjunction with our actual ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The number of spacecraft orbiting Earth is rising fast thanks to the emergence of private ...

More objects are being launched into space than ever, and most are headed for low Earth orbit. This region of space has become increasingly crowded with launches from SpaceX and others that have ...

Space junk has filled up so much of Earth's orbit that it's endangering satellites and astronauts. The company Kayhan Space issues roughly 1,000 space-collision warnings per day. Earth-orbit experts ...

The “mini moon” that’s been tagging along in Earth’s orbit recently is departing on Monday — leaving behind a scientific surprise: It may have once been part of our own actual moon. Asteroid 2024 PT5, ...

Earth will have an extra moon for a couple of weeks this fall, and it may return for a second round in a few decades. A 33-foot asteroid named 2024 PT5 is expected to be pulled into orbit around the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A small space rock ...