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An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the four main...

Colonel Luca Parmitano (born 27 September 1976 in Paternò, Sicily) is an Italian astronaut in the European Astronaut Corps for the European Space Agency...

STS-124 was a Space Shuttle mission, flown by Space Shuttle Discovery to the International Space Station. Discovery launched on May 31, 2008, at 17:02...

Tharsis (/ˈθɑːrsɪs/) is a vast volcanic plateau centered near the equator in the western hemisphere of Mars. The region is home to the largest volcanoes...

A lunar node is either of the two orbital nodes of the Moon, that is, the two points at which the orbit of the Moon intersects the ecliptic. The ascending...

The Ames Research Center (ARC), also known as NASA Ames, is a major NASA research center at Moffett Federal Airfield in California's Silicon Valley. It...

Zond (Russian: Зонд, lit. 'probe') was the name given to two distinct series of Soviet robotic spacecraft launched between 1964 and 1970. The first series...

The Columbia Accident Investigation Board (CAIB) was an internal commission convened by NASA to investigate the destruction of the Space Shuttle Columbia...

Gagarin's Start (Russian: Гагаринский старт, Gagarinskiy start), also known as Baikonur Site 1 or Site 1/5 was a launch site at the Baikonur Cosmodrome...

An annular solar eclipse occurred at the Moon's descending node of orbit on Thursday, April 29, 1976, with a magnitude of 0.9421. A solar eclipse occurs...

In astrodynamics or celestial mechanics, an elliptic orbit or elliptical orbit is a Kepler orbit with an eccentricity of less than 1; this includes the...

The R-7 (Russian: Р-7) family of rockets is a series of rockets, derived from the Soviet R-7 Semyorka, the world's first intercontinental ballistic missile...

An annular solar eclipse occurred on June 28, 1889. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring...

Infrared astronomy is a sub-discipline of astronomy which specializes in the observation and analysis of astronomical objects using infrared (IR) radiation...

The Darian calendar is a proposed system of timekeeping designed to serve the needs of any possible future human settlers on the planet Mars. It was created...

This is a timeline of achievements in Soviet and United States spaceflight, spanning the Cold War era of nationalistic competition known as the Space Race...

Barnacle Bill is a 40-centimetre (16 in) rock on Mars in Ares Vallis. It was the first rock on Mars analyzed by the Sojourner rover using its Alpha Proton...

A transit of Earth across the Sun as seen from Mars takes place when the planet Earth passes directly between the Sun and Mars, obscuring a small part...

The Diamant rocket (French for "diamond") was the first exclusively French expendable launch system and at the same time the first satellite launcher not...

The year 2011 saw a number of significant events in spaceflight, including the retirement of NASA's Space Shuttle after its final flight in July 2011,...