In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast-moving body using the world's most powerful telescopes. It was found to be ...

A group of comets with unexplained movements presents a quandary D avide Farnocchia hunts down and tracks asteroids, and several years ago he saw something he couldn’t explain. Farnocchia works at ...

A planetary scientist explains new research explaining the differing compositions between space rocks that hit Earth and are brought back.

A mere 48 light-years from Earth in the constellation Ophiuchus is an exoplanet that has been defying scientists attempts to understand it.

Theoretically, Sunbird's tremendous speeds could cut mission times to Mars in half, from seven to eight months to about four. Pulsar Fusion views the vehicle as an interplanetary tug; Sunbird would ...

In an exciting new chapter for NASA’s Lucy spacecraft, the spacecraft is now just days away from its second asteroid flyby. On April 20, 2025, Lucy will closely approach Donaldjohanson, a small ...

The May issue of Scientific American takes you on a deep-sea mining mission, explores dark comets and examines an invisible threat to the food we eat ...

For the first time in history, we can explore the universe through a rich blend of senses—seeing, touching, and hearing astronomical data—in ways that deepen our understanding of space. While ...

Perseverance just stumbled upon one of Mars’ weirdest rocks yet—a formation covered in dark, spherical shapes with mysterious ...