When 1I/'Oumuamua was first spotted in 2017, astronomers quickly determined that it came from outside the solar system. But ...

Today, let's talk about a super mysterious celestial body in the solar system - Sedna. Did you know that Sedna takes about 11 ...

Unlike typical comets, ‘Oumuamua lacks rock or carbon-rich material. It is also much more elongated than other comets. It ...

Asteroid Bennu—the target of NASA's OSIRIS-REx sample return mission, led by the University of Arizona—is a mixture of materials from throughout, and even beyond, our solar system. Over the past few ...

Is 3I/ATLAS an alien space probe? An irregular comet? Debate rages around status of 3rd interstellar object ever spotted. Harvard astrophysicist Avi Loeb discusses implications with ‘Magazine.' An ...

Today, let's talk about an extremely mysterious celestial body in the solar system — Sedna. Did you know that it takes Sedna about 11,000 years to complete one orbit around the Sun? It moves slowly at ...

In a pair of papers published in 2018 and 2021 in the Journal of Geophysical Research: Planets, planetary scientist Steve ...

An incoming interstellar object – the third ever detected by humanity – challenges all theories about its construction, and could even potentially be a sign of intelligent alien civilization out in ...

Discover Our Solar System Through Detailed 3D Models Forget dusty textbooks and flat diagrams. We’re talking about ...

When considering the unnamed major features of all the moons, asteroids, and comets in our solar system, there are still a ...

NEW YORK — Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last ...

Sooner or later, a sizable asteroid could impact a populated area on Earth. How is the US, and the world, preparing?