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The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to...

The Soviet space program (Russian: Космическая программа СССР, romanized: Kosmicheskaya programma SSSR) was the national space program of the Union of...

The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the...

Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy, and one of the 88 modern constellations. Located in...

The Space Shuttle Solid Rocket Booster (SRB) was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight...

Medieval Islamic astronomy comprises the astronomical developments made in the Islamic world, particularly during the Islamic Golden Age (9th–13th centuries)...

The Hungaria asteroids, also known as the Hungaria group, are a dynamical group of asteroids in the asteroid belt which orbit the Sun with a semi-major...

Vulcan /ˈvʌlkən/ was a theorized planet that some pre-20th century astronomers thought existed in an orbit between Mercury and the Sun. Speculation about...

82 G. Eridani (HD 20794, HR 1008, e Eridani) is a star 19.7 light-years (6.0 parsecs) away from Earth in the constellation Eridanus. It is a main-sequence...

This list covers most artificial satellites built and operated by the Republic of India. India has been successfully launching satellites of various types...

Columba is a faint constellation designated in the late sixteenth century, remaining in official use, with its rigid limits set in the 20th century. Its...

C/2020 F8 (SWAN), or Comet SWAN, is an Oort cloud comet that was discovered in images taken by the Solar Wind Anisotropies (SWAN) camera on March 25, 2020...

Sea Launch was a multinational—Norway, Russia, Ukraine, United States—spacecraft launch company founded in 1995 that provided orbital launch services from...

Singapore Space and Technology Ltd (SSTL) is a non-governmental space organization based in Singapore within the aerospace industry. SSTL is recognized...

Colin Michael Foale CBE (/foʊl/; born 6 January 1957) is a British-American astrophysicist and a former NASA astronaut. He is a veteran of six space missions...

Giovanni Virginio Schiaparelli ForMemRS HFRSE (/ˌskæpəˈrɛli, ˌʃæp-/ SKAP-ə-REL-ee, SHAP-, US also /skiˌɑːp-/ skee-AHP-, Italian: [dʒoˈvanni virˈdʒiːnjo...

Albategnius is an ancient lunar impact crater located in the central highlands. It is named after the Mesopotamian Muslim astronomer and scientist Abū...

AS-201 (Also known as SA-201 or Apollo 1-A), flown February 26, 1966, was the first uncrewed test flight of an entire production Block I Apollo command...

AS-202 (also referred to as SA-202 or Apollo 2) was the second uncrewed, suborbital test flight of a production Block I Apollo command and service module...

SMACS J0723.3–7327, commonly referred to as SMACS 0723, is a galaxy cluster about 4 billion light years from Earth, within the southern constellation of...