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 ...