... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . des reportages . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Un impact record vu en direct sur la Lune . ... Comment d†йtecter des flashs sur la Lune ? ... 30/03/2016 - La chute dтАЩun corps c†йleste sur Jupiter vue en direct . ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Observing . ... MESSENGER mission to impact Mercury today . ... The mission plan called for MESSENGER to spend one Earth year at Mercury, but when early findings raised new questions, NASA granted two mission extensions for a total of three additional years. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... The Lunar Orbiter 3 spacecraft was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. ... The spacecraft was placed in a cislunar trajectory and injected into an elliptical lunar orbit for data acquisition. ... The spacecraft acquired photographic data from February 15 to 23, 1967, and readout occurred through March 2, 1967. ... The quality of recorded data ranged from good to excellent. ...

Lunar Orbiter 3 . ... Launch Date: 1967-02-05 . ... The Lunar Orbiter 3 spacecraft was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. ... A three-axis inertial system provided stabilization during maneuvers and when the sun and Canopus were occulted by the Moon. ... The spacecraft acquired photographic data from February 15 to 23, 1967, and readout occurred through March 2, 1967. ...

... Rough topography, a large mountain, impact craters, grooves, and steep scarps characterize this region. ... Dawn Science Team Presents Early Science Results . ... Scientists with NASA's Dawn mission are sharing with other scientists and the public their early information about the southern hemisphere of the giant asteroid Vesta. ... If you enjoyed this excerpt from a feature article and would like to receive our quarterly Mercury magazine, we invite you to join the ASP and receive 4 issues a year. ...

Astronomy - Does Pluto have rings? - http://www.astronomy.com/asy/default.aspx?c=a&id=4173 Search LOGIN | ... The magazine | Intro to astronomy | ... Learn more A fter our team discovered Pluto's small moons, we realized impacts on them might generate ejecta that gets into orbit around Pluto, creating rings around the planet. ... In contrast, P1 and P2 have escape speeds about 10 times smaller, allowing much of the ejecta produced in impact events on their surfaces to get into orbit around Pluto. ...

Next: EPN_BADPIX Up: EMOS_BADPIX Previous: Generation from Ground Calibration Contents . Bad pixel lists are derived mostly from the internal calibration exposures, acquired at regular intervals since the beginning of the mission via dedicated automatic monitoring scripts at the SOC. ... Diagnostic and science exposures can also be used to identify bad pixels. Diagnostic exposures can also be used to confirm the presence of previously identified and up-linked bad pixels. ...

... Credit Copyright: Genesis Mission , NASA