A newly identified group of icy bodies in the Kuiper Belt has left astronomers both surprised and intrigued. Led by Amir ...

For the first time since Pluto was demoted, the idea of a true ninth planet is edging from speculation toward something ...

An unexpected flyby observation into another planetary system’s distant past was conducted using a spacecraft designed for ...

The Artemis II mission, which could launch as early as February, is expected to send four astronauts on a trip to the moon, ...

This article is about Reflect Orbital’s plan to provide “sunlight on demand” using reflector satellites in low Earth orbit ...