Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

The star Polaris marks the North Celestial Pole in our sky, around which all other objects in the heavens appear to rotate.

The Axiom Mission 4 launch sent an international crew to the ISS, advancing commercial spaceflight and preparing for the ...

The breathtaking celestial displays known as the aurorae — the aurora borealis in the Northern Hemisphere and the aurora ...

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 ...

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

Rising Moon: A terrific trio “Over here!” A triplet of magnificent large craters practically beckons us on the evening of June 3rd. It’s the Moon in a classic, highly photogenic profile ...

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

A combination of a dynamo-generated magnetic field and massive impacts could explain the highly magnetized rocks in some lunar regions.

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, ...