Comets are not the only celestial bodies with tails. Earth and Mercury also possess them, formed by different mechanisms.

Part 2 explores the dramatically different approaches to the launch systems, and the surprising similarities in the factors ...

Indonesia will revoke more than 20 forestry permits across the country, the forestry minister said Monday, after deadly ...

Navy football players will wear patches from real-world units, including the Army's 160th Special Operations Aviation ...

On Nov. 29, 1864, a Colorado militia launched an unprovoked attack on an encampment of Cheyenne and Arapahoe tribal members, ...

One midshipman will honor a crew from the Army's 160th Special Operations Aviation Regiment, whose pilot had close ties to ...

Dad’s Mercury restored after 30 years of abandonment and neglect.

Star maps and charts are a mainstay of both amateur and professional sky observers. Whether it's on a simple seasonal map or ...

One of the most enduring traditions of the Army-Navy Game involves the special patches players on both sides have sewn onto ...

The Earth's tail is known as the "magnetotail". Though it is generally a permanent feature, it is at the whims of the solar ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Monumentally important, this is the first image of an American astronaut in space. In the Project Mercury spacecraft named ...