Mercury hovers above the horizon near a four-percent-illuminated Moon, whose darkened face may be lit by earthshine.

As Asteroid Day marks its 10th anniversary, U.S. Senators Kelly and Cornyn introduce a resolution to establish National ...

The new planet is TWA 7 b, where the “b” means that this is the first exoplanet discovered in this system. (The “a,” if used, ...

Globular cluster M15 hides within it a planetary nebula, Pease 1. Observers with large scopes and steady skies can find it.

Sir William Huggins directed his reflector, equipped with spectroscopic and photographic tools and located in his private ...

Sweeping views of nebulae and dancing galaxies prove the telescope’s enormous field of view and ultra-high-res capabilities.

Astronomers face a data deluge from observatories like Vera Rubin — simulated skies may be key to training algorithms to keep ...

Here’s what’s launching this week from June 23–29: ULA’s Kuiper 2 mission leads the way, with SpaceX Starlink flights, Rocket ...

Longtime imager and Astronomy magazine contributor Giovanni Tumino just sent me his latest image, and I’m gagging. He was ...

The planet Mercury is visible after sunset in the west, forming a line with the heads of Gemini the Twins: the stars Castor ...

The crescent Moon lies in Taurus near the planet Uranus. You can easily spot the distant ice giant with binoculars or a small ...

#2. The Moon came from Earth. It didn’t form beside our planet, and Earth’s gravity didn’t capture it. The latest theory says ...