Nearly 50 years after launch, a pair of aging spacecraft have stumbled into one of the strangest regions ever measured in ...

NASA’s Interstellar Boundary Explorer, known as IBEX, has spent more than a decade mapping an invisible structure of magnetic ...

Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, evolution, and current structure of the outer solar system. The object was found as ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. An object has been discovered orbiting the sun far beyond ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The solar system suddenly has a new member. A new object ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

3I/ATLAS has now made its closest approach to the sun and Earth and is now heading back out toward the outer solar system. When you purchase through links on our site, we may earn an affiliate ...