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

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

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

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

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 ...

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 ...

The shining Southern Pinwheel Galaxy (M83) in Hydra checks almost every box an amateur astronomer could desire.

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 ...

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

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 ...