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The two small spacecraft GRAIL A (Ebb) and GRAIL B (Flow) [6] [7] were launched on 10 September 2011 aboard a single launch vehicle: the most-powerful configuration of a Delta II, the 7920H-10. [ 1 ] [ 8 ] [ 9 ] GRAIL A separated from the rocket about nine minutes after launch, GRAIL B followed about eight minutes later.
The twin GRAIL (Gravity Recovery and Interior Laboratory) satellites orbited the Moon from December 2011 to December 2012. The data they sent back deepened our understanding of the Moon’s gravity and interior composition. [2] GRAIL was NASA’s first planetary mission with instruments fully dedicated to education and public outreach.
Header of the Discovery Program website (January 2016) [1] Depictions of the Lucy and Psyche missions Asteroid Eros regolith, as viewed by Discovery's NEAR Shoemaker mission The Discovery Program is a series of Solar System exploration missions funded by the U.S. National Aeronautics and Space Administration (NASA) through its Planetary Missions Program Office.
Way back in September, NASA's Jet Propulsion Laboratory sent a duo of Lockheed Martin-produced spacecraft toward one of its favorite test subjects, the Moon, as a part of its GRAIL mission ...
The mission was known as IM-3 mission and was planned to land on the Moon in 2024. The contract value was $77.5 million and under the contract, Intuitive Machines was responsible for end-to-end delivery services, including payload integration, delivery from Earth to the surface of the Moon, and payload operations.
GRAIL-A · Moon · Earth A low-energy transfer , or low-energy trajectory , is a route in space that allows spacecraft to change orbits using significantly less fuel than traditional transfers. [ 1 ] [ 2 ] These routes work in the Earth – Moon system and also in other systems, such as between the moons of Jupiter .
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The spacecraft would have been launched in July 2014 on a nine-month mission with a possible 15-month extension for a guest observer phase; [4] but the mission was terminated at the Confirmation Review stage on 10 May 2012 due to expected cost overruns.