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venus express aerobraking
2014-07-30 03:00:26

ESA ESA’s Venus Express spacecraft has climbed to a new orbit following its daring aerobraking experiment, and will now resume observations of this fascinating planet for at least a few more months. The orbit-raising followed a month of aerobraking that saw the spacecraft surf in and out of the atmosphere at altitudes typically between 131 km and 135 km for a couple of minutes on each of its closest approaches to the planet. Before, normal operations involved an elliptical orbit...

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2014-06-07 05:13:41

redOrbit Staff & Wire Reports - Your Universe Online Now that the European Space Agency’s (ESA) Venus Express spacecraft has completed its eight-year scientific mission and is preparing to plunge into the planet’s atmosphere, the agency has started providing regular space weather reports for an extraterrestrial world for the first time. Venus Express, which was launched in November 2005, had been orbiting the planet in an elliptical 24-hour loop and using a suite of seven...

Venus Express Preparing To Take The Plunge
2014-05-16 03:55:38

[ Watch the Video: ESA’s Venus Express Aerobraking Maneuver ] ESA After eight years in orbit, ESA’s Venus Express has completed routine science observations and is preparing for a daring plunge into the planet’s hostile atmosphere. Venus Express was launched on a Soyuz–Fregat from the Russian Baikonur Cosmodrome in Kazakhstan on 9 November 2005, and arrived at Venus on 11 April 2006. It has been orbiting Venus in an elliptical 24-hour loop that takes it from a distant 66...

Mars Odyssey Orbiter Goes Into Standby Safe Mode
2012-06-10 04:45:32

NASA's Mars Odyssey orbiter put itself into a precautionary standby status early Friday, June 8, Universal Time (Thursday evening, Pacific Time), when the spacecraft detected unexpected characteristics in movement of one of its reaction wheels. The spacecraft uses three of these wheels as the primary method for adjusting and maintaining its orientation.  It carries a spare reaction wheel. Odyssey's flight team is in communication with the spacecraft while planning actions in response...

2011-07-27 09:39:10

The MESSENGER spacecraft continued to fine-tune its orbit around Mercury yesterday afternoon when mission controllers at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., successfully executed the second orbit-correction maneuver of the mission. The 3-minute, 8-second engine burn stretched the spacecraft's orbit around the innermost planet from 11 hours 48 minutes to a precise 12 hours. This second of an expected five maneuvers planned for the mission's primary...

2011-07-19 15:28:00

PHOENIX, July 19, 2011 /PRNewswire/ -- Members of KinetX's technical staff are advancing the state-of-the-art of mission design and navigation for deep space missions by participating in the upcoming Astrodynamics Specialist Conference (July 31-August 4, 2011) in Girdwood, Alaska, which is organized by the American Astronautical Society (AAS) Space Flight Mechanics Committee and co-sponsored by the American Institute of Aeronautics and Astronautics (AIAA) Astrodynamics Technical...

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2009-05-04 06:35:00

With space becoming increasingly more crowded, scientists are turning to "sails" to help satellites and other orbiting space objects return more rapidly to Earth.  Researchers hope the approach will help minimize the number of redundant objects in orbit, thereby reducing collision threats to operational missions. Extending a sail on an old spacecraft would increase its drag, pulling the vehicle back in to the Earth's atmosphere to burn up. It's a concept with great potential, said...

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2008-07-17 08:15:00

Starting this week, spacecraft controllers have been executing a series of maneuvers to gradually bring Venus Express closer to its host planet. In its modified orbit, the spacecraft will be able to observe unexplored regions and investigate phenomena that were not within its reach before. The operational maneuvers to bring the spacecraft closer will be executed through the month of July, settling it into its new orbit by 4 August. Until now, Venus Express has occupied a highly eccentric...

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2006-09-12 22:05:00

JPL - NASA's newest spacecraft at Mars has completed the challenging half-year task of shaping its orbit to the nearly circular, low-altitude pattern from which it will scrutinize the planet. The Mars Reconnaissance Orbiter fired its six intermediate-size thrusters for 12.5 minutes Monday afternoon, Sept. 11, shifting the low point of its orbit to stay near the Martian south pole and the high point to stay near the north pole.  The altitude of the orbit ranges from 250 kilometers (155...

2006-08-31 07:33:12

Nearly six months after it entered orbit, Mars Reconnaissance Orbiter has concluded its aerobraking phase. The spacecraft had been dipping in and out of the Red Planet's atmosphere to adjust its orbit. On August 30, 2006, during its 445th orbit, the spacecraft fired its intermediate thrusters to raise the low point of its orbit and stop dipping into the atmosphere. The six-minute engine burn began at 10:36 a.m. PST, altering the spacecraft's course so that its periapsis (the closest it...


Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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