The rotating disk galaxy, mostly made up of dark matter, was discovered within a larger cloud of fast-moving hydrogen gas.

Fresh data from the James Webb Space Telescope provide more evidence for what some consider a biosignature — but debate is ...

The constellation of four satellites can take both narrow- and wide-field images of the Sun to study its corona and solar ...

The planets offer exciting views in April. Jupiter is a brilliant object in the evening sky, although the observing window narrows as the Sun sets later each day. Mars is past its best, but ...

The photo of a 9.5-light-year-long cloud within the Eagle Nebula celebrates the space telescope’s upcoming 35th birthday.

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

In a preliminary budget proposal, the agency’s science programs would see a 50 percent reduction, with a 20 percent cut to ...

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

There’s real joy in sharing a telescope with others and observing in a crowd. Here's how you can find a star party near you ...

The company’s New Shepard rocket launched celebrities and four others to the edge of space and back on April 14, 2025.

We’ve wondered what powered the Sun for centuries. Early guesses included meteor showers, chemical combustion, and ...