For a short time, dear Luna has a friend. The asteroid 2024 PT5 spans just 33 feet (10 meters) and won’t even orbit Earth ...

Comet Tsuchinshan-ATLAS reaches perihelion, Venus is a bright evening star, and the New Moon passes in front of the Sun in ...

Astronomers comparing data taken by Dawn with models of Ceres on Earth determined that organics on its surface came from ...

JWST discovers that accreting black holes may be to blame for reports that hinted early galaxies were too big for their ...

Although still difficult to see, 2024's best comet is nearing the Sun and getting brighter. Here's how to see it.

The citizen science app, available in eight languages, uses public input to identify kilonovae, neutron star mergers that ...

In this episode, Dave Eicher describes the upcoming conjunction of two bright objects in the evening sky. On October 5th, you ...

An experiment with powerful pulses of energy sent test targets flying in a step forward for planetary defense.

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An issue called the final parsec problem detailed the theoretical difficulty in bringing supermassive black holes close ...