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Latest Gravity assist Stories

0721224da37eee90d154a537b105ecc4
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.

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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.

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2009-10-16 15:15:00

NASA's Galileo spacecraft began what would become a 14-year odyssey of exploration 20 years ago this Sunday, Oct 18.

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2009-09-28 09:45:00

NASA's MESSENGER spacecraft, which is toting an $8.7 million University of Colorado at Boulder instrument, will make its third and final flyby of Mercury on Sept. 29 -- a clever gravity-assist maneuver that will steer it into orbit around the rocky planet beginning in March 2011.

2009-09-23 12:32:00

WASHINGTON, Sept. 23 /PRNewswire-USNewswire/ -- NASA's Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft known as MESSENGER will fly by Mercury for the third and final time on Sept. 29.

8e91aba68b97e780465559f9da5774f31
2009-09-23 14:30:26

NASA's Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft known as MESSENGER will fly by Mercury for the third and final time on Sept. 29.

21f8a9bc9ba58260a5b2571a0a9825d91
2009-09-21 11:25:00

NASA will host a media teleconference at 1 pm EDT on Wednesday, Sept 23, to preview the third and final flyby of Mercury by the Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft known as MESSENGER.

8f3b249666423d1690b56347121c5da71
2009-06-30 14:00:00

Scientists said goodbye to the Ulysses solar probe on Tuesday, following 18 years of activity.

a2f38db9539921307166aabce3a511191
2009-06-26 09:35:00

Upon receipt of the last command from Earth, the transmitter on Ulysses will switch off on 30 June, bringing one of the most successful and longest missions in spaceflight history to an end.

9616c4d8ddda17b5f976bc7266e502db1
2009-02-12 18:45:00

Launched in September of 2007, and propelled by any one of a trio of hyper-efficient ion engines, NASA's Dawn spacecraft passed the orbit of Mars last summer. Now, the spacecraft is plunging toward the red planet, and scientists couldn't be happier.


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...

9_97b760b54aa7e1f81283511b4e3ada292
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...

6_e1c9b89b48eaf2af7055b7bbebf1a19c2
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
plim
  • To swell, as grain or wood with water.
The word 'plim' is probably a variant of the word 'plum'.
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