The number of satellites orbiting Earth is rising fast, thanks to private companies such as SpaceX. But just how big will ...

Rocket Lab plans to launch an Earth-observing satellite for the company BlackSky tonight (May 28), and you can watch the ...

Thousands of satellites with incredibly short lifetimes are being sent up into low Earth orbit. When they fall back down they ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

A paper by astronomers Nathan Kaib and Sean Raymond released earlier this month used new simulations to determine how likely ...

In the vast expanse of space, an estimated 1 million near-Earth objects (NEOs), also known as near-Earth asteroids, are ...

A new threat looms as scientists warn of dangerous asteroids near Venus, hidden from Earth's telescopes by the Sun's glare.

The Kosmos 482 probe crashed to Earth today (May 10) after circling our planet for more than five decades. Reentry occurred ...

In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and ...

In a May 16 notice, the service calls for feedback from firms that can provide space domain awareness in the “increasingly ...

Kosmos 482 rocketed into space in 1972 on a quest to reach Venus, but its journey was scuttled by an apparent engine ...

The failed Soviet spacecraft Kosmos 482 has finally returned to Earth after 53 years in orbit. It disappeared into the Indian ...