For the next few decades, a tiny asteroid will move quietly through space alongside Earth. This space rock, called 2025 PN7, ...

The International Space Station (ISS) has been orbiting Earth for the last quarter of a century. But it was only this week ...

Satellite constellations are a relatively new threat to astronomy; prior to the drop in launch costs driven by SpaceX’s ...

On Monday, SpaceX made space history, as four astronauts were launched into a pole-to-pole orbit not traveled by any human before them. But why is this orbit so unusual, and why has nobody done it ...

From the earliest artificial satellites to today's sophisticated space telescopes and GPS constellations, these marvels of engineering have revolutionized how we communicate, navigate, observe, and ...

Discovered in 2016 by Haleakala Observatory’s Pan-STARRS system, Kamo’oalewa is a near-Earth asteroid orbiting the planet. Now a new Cornell University study is attempting to answer a question long ...

An illustration depicts what the surface of one of the exoplanets orbiting Barnard's Star may look like. The other three planets within the system can also be seen. - International Gemini ...

SQUIRE aims to detect exotic spin-dependent interactions using quantum sensors deployed in space, where speed and ...

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention ...

Our world could still be rocked indirectly. “City-killer” asteroid 2024 YR4 may no longer be on a collision course with Earth, but it could pose a threat to our planet. Astronomers have upped the odds ...

An international team including five Carnegie astronomers has discovered a frozen Super-Earth orbiting Barnard’s star, the closest single star to our own Sun. The Planet Finder Spectrograph on ...

The hunt is on for a second Earth, somewhere out there in the Milky Way galaxy, but a newly discovered world is not quite the thing. It comes in at around 1.9 times ...