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.

Thousands of pieces of space debris, also known as space junk, are orbiting Earth, with tons more added each year. This orbital debris poses a significant threat to satellites, spacecraft, astronauts ...

SpaceX launched another batch of Starlink V2 Mini satellites into orbit from Florida on Sunday morning in its latest mission. The 28 broadband internet satellites were launched into orbit aboard ...

Beginning Sunday, Earth's skies will soon have a temporary visitor. On September 29, an asteroid dubbed 2024 PT5 will become a "mini-moon" of sorts, temporarily entering Earth's orbit for almost two ...

Twenty-eight new SpaceX Starlink satellites are now in low Earth orbit, having launched from Florida early Wednesday morning (June 18). A Falcon 9 rocket carrying the broadband internet relays lifted ...