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The Roscosmos State Corporation for Space Activities (Russian: Государственная корпорация по космической деятельности «Роскосмос»), commonly known simply...

Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes...

The Large Binocular Telescope (LBT) is an optical telescope for astronomy located on 10,700-foot (3,300 m) Mount Graham, in the Pinaleno Mountains of southeastern...

Selenography is the study of the surface and physical features of the Moon (also known as geography of the Moon, or selenodesy). Like geography and areography...

A launch pad is an above-ground facility from which a rocket-powered missile or space vehicle is vertically launched. The term launch pad can be used to...

RP-1 (alternatively, Rocket Propellant-1 or Refined Petroleum-1) is a highly refined form of kerosene outwardly similar to jet fuel, used as rocket fuel...

Shenzhou (Chinese: 神舟; pinyin: Shénzhōu, /ˈʃɛnˈdʒoʊ/; see § Etymology) is a spacecraft developed and operated by China to support its crewed spaceflight...

The communication with extraterrestrial intelligence (CETI) is a branch of the search for extraterrestrial intelligence (SETI) that focuses on composing...

The Moon illusion is an optical illusion which causes the Moon to appear larger near the horizon than it does higher up in the sky. It has been known since...

The Combined Array for Research in Millimeter-wave Astronomy (CARMA) was an astronomical instrument comprising 23 radio telescopes, dedicated in 2006....

The Hyperion proto-supercluster is the largest and earliest known proto-supercluster, 5,000 times the mass of the Milky Way and seen at 20% of the current...

Alpha Coronae Borealis (α Coronae Borealis, abbreviated Alpha CrB, α CrB), officially named Alphecca /ælˈfɛkə/, is an eclipsing binary star in the constellation...

GSAT-20 (also known as CMS-03 or GSAT-N2) is a communication satellite being developed by Indian Space Research Organisation and will be launched by a...

Richard Michael Mullane (born September 10, 1945; Col, USAF, Ret.) is an engineer and weapon systems officer, a retired USAF officer, and a former NASA...

Glenelg, Mars (or Glenelg Intrigue) is a location on Mars near the Mars Science Laboratory (Curiosity rover) landing site (Bradbury Landing) in Gale Crater...

First Orbit is a 2011 feature-length, experimental documentary film about Vostok 1, the first human space flight around the Earth. By matching the orbit...

Étienne Léopold Trouvelot (December 26, 1827 – April 22, 1895) was a French artist, astronomer and amateur entomologist. He is noted for the import and...

(65407) 2002 RP120 (provisional designation 2002 RP120) is a trans-Neptunian object and damocloid from the outer Solar System. Its orbit is retrograde...