Born June 29, 1868, in Chicago, George Ellery Hale revolutionized American astronomy by, among other things, championing the ...

Two distant planets lie 1° apart in the morning sky, visible together in the same field of view through binoculars or a telescope.

The bright morning star Venus crosses from Aries into Taurus, closing in on Uranus for a conjunction later this week.

Felton Davis offered thousands of strangers a close-up view of the Moon and planets orbiting New York City. Now he’s passing ...

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

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic ...

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

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

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

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

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 ...