enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Apollo asteroid - Wikipedia

    en.wikipedia.org/wiki/Apollo_asteroid

    The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, discovered by German astronomer Karl Reinmuth in the 1930s. They are Earth-crossing asteroids that have an orbital semi-major axis greater than that of the Earth (a > 1 AU) but perihelion distances less than the Earth's aphelion distance (q < 1.017 AU). [1][2]

  3. Third-party evidence for Apollo Moon landings - Wikipedia

    en.wikipedia.org/wiki/Third-party_evidence_for...

    The camera (near Conrad's right hand) is on display at the National Air and Space Museum. Third-party evidence for Apollo Moon landings is evidence, or analysis of evidence, about the Moon landings that does not come from either NASA or the U.S. government (the first party), or the Apollo Moon landing hoax theorists (the second party).

  4. Olympus Mons - Wikipedia

    en.wikipedia.org/wiki/Olympus_Mons

    Olympus Mons (/ əˌlɪmpəs ˈmɒnz, oʊ -/; [4] Latin for ' Mount Olympus ') is a large shield volcano on Mars. It is over 21.9 km (13.6 mi; 72,000 ft) high as measured by the Mars Orbiter Laser Altimeter (MOLA), [5] about 2.5 times the elevation of Mount Everest above sea level. It is Mars's tallest volcano, its tallest planetary mountain ...

  5. Delta-v budget - Wikipedia

    en.wikipedia.org/wiki/Delta-v_budget

    Delta- v in feet per second, and fuel requirements for a typical Apollo Lunar Landing mission. In astrodynamics and aerospace, a delta-v budget is an estimate of the total change in velocity (delta- v) required for a space mission. It is calculated as the sum of the delta-v required to perform each propulsive maneuver needed during the mission.

  6. List of Apollo missions - Wikipedia

    en.wikipedia.org/wiki/List_of_Apollo_missions

    Contents. List of Apollo missions. The Apollo program was a United States human spaceflight program carried out from 1961 to 1972 by the National Aeronautics and Space Administration (NASA), which landed the first astronauts on the Moon. [ 1 ] The program used the Saturn IB and Saturn V launch vehicles to lift the Command/Service Module (CSM ...

  7. Van Allen radiation belt - Wikipedia

    en.wikipedia.org/wiki/Van_Allen_radiation_belt

    The inner Van Allen Belt extends typically from an altitude of 0.2 to 2 Earth radii (L values of 1.2 to 3) or 1,000 km (620 mi) to 12,000 km (7,500 mi) above the Earth. [ 4 ] [ 16 ] In certain cases, when solar activity is stronger or in geographical areas such as the South Atlantic Anomaly , the inner boundary may decline to roughly 200 km ...

  8. Moon landing - Wikipedia

    en.wikipedia.org/wiki/Moon_landing

    An estimated 500 million people worldwide watched this event, the largest television audience for a live broadcast at that time. [ 1 ][ 2 ] A Moon landing or lunar landing is the arrival of a spacecraft on the surface of the Moon, including both crewed and robotic missions. The first human-made object to touch the Moon was Luna 2 in 1959.

  9. The Blue Marble - Wikipedia

    en.wikipedia.org/wiki/The_Blue_Marble

    The Blue Marble is a photograph of Earth taken on December 7, 1972, by either Ron Evans or Harrison Schmitt aboard the Apollo 17 spacecraft on its way to the Moon.Viewed from around 29,400 km (18,300 mi) from Earth's surface, [1] a cropped and rotated version has become one of the most reproduced images in history.