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Latest Gravity assist Stories

2011-03-18 17:45:00

PHOENIX, March 18, 2011 /PRNewswire/ -- On the evening of March 17, 2011, NASA's MESSENGER spacecraft fired its main engine for 15 minutes to perform a Mercury capture maneuver and became the first spacecraft in history to orbit the innermost planet to the Sun. This event marks the culmination of over six and a half years of interplanetary cruise in an ever-tightening spiral toward Mercury, where MESSENGER performed six gravity-assist planet flybys: one of Earth, two of Venus, and three...

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2011-03-10 09:35:00

After more than a dozen laps through the inner solar system, NASA's MESSENGER spacecraft will move into orbit around Mercury on March 17, 2011. The durable spacecraft--carrying seven science instruments and fortified against the blistering environs near the sun--will be the first to orbit the innermost planet. At 8:45 p.m. EDT, MESSENGER--having pointed its largest thruster very close to the direction of travel--will fire that thruster for nearly 14 minutes, with other thrusters firing for an...

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2011-02-01 14:21:21

As the team of scientists behind NASA's MESSENGER spacecraft eagerly awaits the craft's entry into Mercury's orbit on March 17, we could soon get answers to questions about the origin, composition, interior structure and geological history of this mysterious planet. Louise Prockter, deputy project scientist on the mission, writes exclusively in February's Physics World about the challenges the craft has been designed to face, the early successes of the mission and her own triumphant voyage...

2010-11-03 00:00:39

Dr. Michael A. Minovitch, mathematician, physicist, and inventor, is announcing that his Gravity Propelled Interplanetary Space Travel work is available online. Also known as gravity assist, or gravity assist trajectories, this invention launched a new era of exploration and space travel. Los Angeles, CA (PRWEB) November 2, 2010 Space travel and exploration would not be the same without the diligent and innovative work of Dr. Michael A. Minovitch. In 1961, Dr. Minovitch invented gravity...

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2010-09-04 12:23:37

The MESSENGER team has just wrapped up a two-week flight test to ensure that the Mercury-bound spacecraft is ready for orbital operations. On March 18, 2011, MESSENGER will become the first spacecraft to enter into orbit about Mercury, embarking on a year-long mission to study in depth the planet closest to the Sun. The completion of this recent test provides a high-fidelity verification of the tools, processes, and procedures that are needed to conduct flight operations at Mercury."Even...

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2010-05-31 07:05:00

NASA's Deep Impact/Epoxi spacecraft has successfully performed a trajectory correction maneuver to refine its orbit prior to an upcoming Earth flyby June 27. The maneuver, along with the Earth flyby, will place the spacecraft on a trajectory to fly past comet Hartley 2 on Nov. 4. The maneuver began at 2 p.m. EST (11 a.m. PST) today, when the spacecraft fired its engines for 11.3 seconds. While the burn changed the spacecraft's velocity by only 0.1 meters per second (less than a quarter mile...

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2010-03-18 11:00:00

One year from today "” starting at 12:45 a.m. UTC "” MESSENGER will transition from orbiting the Sun to being the first spacecraft ever to orbit the planet Mercury. "We are finally closing in on the most intense phase of the mission," says MESSENGER Principal Investigator Sean Solomon, of the Carnegie Institution of Washington. "MESSENGER's six and a half years of interplanetary flight are a long warm-up for the main event, when we are in orbit about Mercury. The final year of...

2009-11-03 12:00:00

WASHINGTON, Nov. 3 /PRNewswire-USNewswire/ -- A NASA spacecraft's third and final flyby of Mercury gives scientists, for the first time, an almost complete view of the planet's surface and provides new scientific findings about this relatively unknown world. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The Mercury Surface, Space Environment, Geochemistry and Ranging spacecraft, known as MESSENGER, flew by Mercury on Sept. 29. The probe completed a critical gravity...

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2009-11-03 12:10:00

A NASA spacecraft's third and final flyby of Mercury gives scientists, for the first time, an almost complete view of the planet's surface and provides new scientific findings about this relatively unknown world. The Mercury Surface, Space Environment, Geochemistry and Ranging spacecraft, known as MESSENGER, flew by Mercury on Sept. 29. The probe completed a critical gravity assist to remain on course to enter into orbit around Mercury in 2011. Despite shutting down temporarily because of a...

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2009-10-20 10:45:00

ESA's Rosetta comet chaser will swing by Earth on November 13 to pick up orbital energy and begin the final leg of its 10-year journey to the outer Solar System. Several observations of the Earth"“Moon system are planned before the spacecraft heads out to study comet 67/P Churyumov-Gerasimenko. This will be the third Earth swingby, the last of Rosetta's four planetary gravity assists. Closest approach to Earth is expected at 08:45 CET. The swingby will provide exactly the boost Rosetta...


Latest Gravity assist Reference Libraries

9_5c04e476a527b2fbd3e32c57addd63822
2004-10-19 04:45:44

Galileo Probe -- The Galileo probe was an unmanned probe sent by NASA to study the planet Jupiter and its moons. Named after the astronomer Galileo Galilei, it was launched on October 18 1989 by the Space Shuttle Atlantis and arrived at Jupiter on December 7 1995. Galileo's launch had been significantly delayed by the hiatus in Space Shuttle launches that occurred after the Space Shuttle Challenger disaster, and new safety protocols that were implemented as a result forced Galileo to use...

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2004-10-19 04:45:44

Cassini-Huygens Mission -- The Cassini unmanned space probe is intended to study Saturn and its moons. It was launched on October 15, 1997 and is estimated to enter Saturn's orbit on July 1, 2004. The mission is a joined NASA/ESA project. Cassini's principal objectives are to: -- determine the three-dimensional structure and dynamical behavior of the rings -- determine the composition of the satellite surfaces and the geological history of each object -- determine the nature and...

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2004-10-19 04:45:41

Escape Velocity -- An escape velocity is the minimum speed at which an object without propulsion can move away from a source of a gravitational field indefinitely if there is no friction. This definition may need modification for the practical problem of two or more sources in some cases. In any case, the object is assumed to be a point with a mass that is negligible compared with that of the source of the field, usually an excellent approximation. It is commonly described as the speed...

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Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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