Averting your gaze when viewing the ringed planet can cause an optical phenomenon that might make you think twice about what ...

Every constellation has something within its borders worth tracking down, if you just look hard enough. Here are five to ...

A century ago this month, a brash astronomer leaked a discovery that opened our view to the cosmic distance scale and the ...

Rainbows may be a trick of the eye, but they’re also based in fascinating optical physics. Here's how they work and why we ...

NASA has identified nine locations near the Moon’s south pole for the first crewed lunar landing since Apollo 17.

Mars’ features are starting to become visible, Mercury appears in the evening sky, and the Trifid Nebula glows in the sky ...

Insulation provided by carbon dioxide ice above the martian polar caps could explain many of the Red Planet’s ancient river features.

Researchers have spotted a promising but puzzling candidate for one of the lightest black holes ever detected.

It is no wonder that curious minds have always sought to explain both the Sun’s origins and our relationship to it — whether through the narratives of myth or modern science. Today, we understand that ...

Scientists are relieved by the observatory’s stay of execution, but concerned that some budget cuts have gutted future research.

The company is reportedly looking for buyers for its space program, which includes the Starliner vehicle and operating parts of the ISS.

Gliese 229 B, discovered in 1995, is a binary system of two brown dwarfs orbiting each other, in orbit around their parent red dwarf star.