The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each issue includes expert science reporting, vivid color ...

Sputnik 2 was launched by the Soviets shortly after Sputnik 1, with its rapid preparation intended to sustain propaganda momentum and align with the 40th anniversary of the Bolshevik Revolution. This ...

PBS's NOVA will present "Operation Space Station," a two-part special premiering November 5 and 12, documenting 25 years of continuous human habitation on the International Space Station (ISS) through ...

Under the leadership of George Ellery Hale, the 100-inch mirror for Mount Wilson Observatory's telescope was ordered in 1906, with funding provided sequentially by businessman John Hooker and then ...

Astronomy is a monthly science and hobby magazine with more than 100,000 readers, and our website Astronomy.com is visited by millions of readers per month. The magazine serves an audience who wants ...

The Sun seems unchanging, but solar flares, prominences, and sunspots often pop up and disappear. Safely observing the Sun can be both fun and rewarding.

Venera 13, launched on October 30, 1981, as part of the Soviet Venera program, was dedicated to the exploration of Venus. The mission achieved the distinction of transmitting the first color panoramic ...

The First Quarter Moon is scheduled for October 28 at 12:21 P.M. EDT, presenting its terminator halfway across the visible lunar disk. During this lunar phase, observers can distinguish maria and ...

On October 27th, Jupiter will be observable south of Pollux in Gemini at magnitude –2.2, with East Coast observers having the opportunity to witness an occultation of its moon Io between approximately ...

A leadership contest for the permanent NASA administrator position is underway, involving current interim administrator Sean Duffy and Jared Isaacman, whose prior nomination was unexpectedly withdrawn ...

Guidance is provided for observing the planet Mercury. Optimal viewing is specified as shortly after sunset, with Mercury positioned low in the western sky. Binoculars are recommended as an aid, ...

Star formation begins with protostars in cold molecular clouds, where gravitational contraction precedes nuclear fusion, and their early evolutionary stages are best characterized through ...