Latest Gravity assist Stories
NASA’s Juno spacecraft, on its way to visit the solar system’s giant Jupiter, took a look back at Earth and the Moon and snapped a photo.
On Sunday, the MESSENGER spacecraft successfully completed the first of four â€œhot seasonsâ€ expected to occur during its one-year primary mission in orbit about Mercury.
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.
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.
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.
Dr. Michael Minovitch Announces Findings on His Invention: Gravity Assist Multiplanetary Trajectories Dr. Michael A. Minovitch, mathematician, physicist, and inventor, is announcing that his Gravity Propelled Interplanetary Space Travel work is available online.
The MESSENGER team has just wrapped up a two-week flight test to ensure that the Mercury-bound spacecraft is ready for orbital operations.
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.
One year from today â€” starting at 12:45 am UTC â€” MESSENGER will transition from orbiting the Sun to being the first spacecraft ever to orbit the planet Mercury.
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.
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...
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...
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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