Search results

A satellite or artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. Satellites have a variety of uses...

Mir (Russian: Мир, IPA: [ˈmʲir]; lit. 'peace' or 'world') was a space station that operated in low Earth orbit from 1986 to 2001, operated by the Soviet...

The Pleiades (/ˈpliː.ədiːz, ˈpleɪ-, ˈplaɪ-/), also known as the Seven Sisters, Messier 45, and other names given by different cultures reflects an observed...

In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. Its primary effect is to...

A space suit or spacesuit is a garment worn to keep a human alive in the harsh environment of outer space, vacuum and temperature extremes. Space suits...

Ingenuity, nicknamed Ginny, is an autonomous NASA helicopter that operated on Mars from 2021 to 2024 as part of the Mars 2020 mission. Ingenuity made its...

Chandrayaan-1 (pronunciation; from Sanskrit: Chandra, "Moon" and yāna, "craft, vehicle") was the first Indian lunar probe under the Chandrayaan programme...

Virgin Galactic Holdings, Inc. is a British-American spaceflight company founded by Richard Branson and the Virgin Group conglomerate which retains an...

Hertzsprung–Russell diagram Spectral type O B A F G K M L T Brown dwarfs White dwarfs Red dwarfs Subdwarfs Main sequence ("dwarfs") Subgiants Giants Red...

Dr. Andrew Frank Jorgensen Abercromby (born 12 May 1980) is a scientist and biomedical engineer who designs and tests spacesuit systems and exercise countermeasures...

Gonets (Russian Гонец, for Messenger) is a Russian civilian low Earth orbit communications satellite system. It consists of a number of satellites, derived...

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

Martian Moons eXploration (MMX) is a robotic space probe set for launch in 2026 to bring back the first samples from Mars' largest moon Phobos. Developed...

Percival Lowell (/ˈloʊəl/; March 13, 1855 – November 12, 1916) was an American businessman, author, mathematician, and astronomer who fueled speculation...

Biela's Comet or Comet Biela (official designation: 3D/Biela) was a periodic Jupiter-family comet first recorded in 1772 by Montaigne and Messier and finally...

The Indian Astronomical Observatory (IAO) is a high-altitude astronomy station located in Hanle, India and operated by the Indian Institute of Astrophysics...

Sol Alan Stern (born November 22, 1957) is an American engineer, planetary scientist and space tourist. He is the principal investigator of the New Horizons...

The Stellafane Observatory is an astronomical observatory in Springfield, Vermont, founded in 1920 by Russell W. Porter. The Pink Clubhouse was built in...

Starlink is a satellite internet constellation operated by SpaceX providing satellite Internet access to most of the Earth. Starshield is a classified...

NGC 3370 (also known as UGC 5887 or Silverado Galaxy) is a spiral galaxy about 82.2 ± 5.9 million light-years (25.2 ± 1.8 megaparsecs) away in the constellation...