Today in the history of astronomy, power from a star is used to turn on the lights as the 1933 World’s Fair opens.

Ruby-red La Superba is a lovely variable star waiting for you to take a look in the northeastern sky this evening.

May 25 and 26, 1959, saw the first meeting of the Research Steering Committee on Manned Space Flight. The committee was also referred to as the Goett Committee, as it was chaired by Harry J. Goett. An ...

Lunar crater Endymion normally sits close to the northeastern limb. Tonight, libration has brought it into clearer view.

A dying star's glowing shell in Lyra offers a haunting preview of our solar system's fate — visible through a small telescope.

A trio of planets stand in line in the evening sky after sunset: Jupiter, Venus, and Mercury, all visible in the twilit sky.

Poland, Nicolaus Copernicus was raised by his uncle, Bishop Lucas Watzenrode, who ensured he was well educated as he grew up.

Main-belt asteroid Egeria is sliding past several stationary background stars tonight, offering a chance to catch its ...

The physics behind the northern lights is just as colorful as their mythology, and we have sought to understand these lights ...

Today in the history of astronomy, space weather forecasters narrowly avert nuclear war.

Slicing through the Montes Alpes mountain range, Vallis Alpes is a favorite feature to view on the First Quarter Moon.