Quantcast

Latest Gravity assist Stories

6e64100d94a35d67f752f16ca00fde4f1
2008-12-09 09:05:00

MESSENGER completed the second part of a two-part deep-space maneuver today, providing the remaining 10% velocity change needed to place the probe on course to fly by Mercury for the third time in September 2009.

4d825ebbf38dbbc33932af2178d9b5991
2008-10-29 12:35:00

A NASA spacecraft gliding over the battered surface of Mercury for the second time this year has revealed more previously unseen real estate on the innermost planet.

dce6116c45db20ea84e2d713c232d3bd1
2008-09-12 15:35:00

It is now only slightly more than three weeks before the MESSENGER spacecraft flies by Mercury for the second time.

6371ea7f66cd0f707d7958b9c686aebb1
2008-09-08 09:30:00

On September 4, the MESSENGER team announced that it would not need to implement a scheduled maneuver to adjust the probe’s trajectory. This is the fourth time this year that such a maneuver has been called off.

27b7b5bda44349142ac62a64a0b94ec01
2008-03-19 17:50:00

The MESSENGER spacecraft delivered a critical deep-space maneuver today – 64 million miles (103 million kilometers) from Earth – successfully firing its large bi-propellant engine to change the probe’s trajectory and target it for its second flyby of Mercury on October 6, 2008.

e2b35b5ab349069050b3931fcfca2613
2008-02-07 11:13:34

Little more than three weeks after MESSENGER’s first historic flyby of Mercury, the team this week began mapping out its trajectory and observation plans for the probe’s second pass of the planet this fall.

d1ad5dffa70aa8c6f32e62473d8d5edd1
2008-01-11 15:20:00

NASA will return to Mercury for the first time in almost 33 years on January 14, 2008, when the MESSENGER spacecraft makes its first flyby of the Sun’s closest neighbor, capturing images of large portions of the planet never before seen.

a32dabe61a5dfd2842593726882d38021
2008-01-10 12:50:00

On Monday, Jan. 14, a pioneering NASA spacecraft will be the first to visit Mercury in almost 33 years when it soars over the planet to explore and snap close-up images of never-before-seen terrain.

2007-12-03 17:20:57

Sending an unmanned spacecraft to the outer fringes of the solar system requires extensive planning. At the University of Missouri, engineers have developed an efficient and highly sophisticated mathematical algorithm (implemented as software) that determines the most efficient path for a spacecraft’s journey from point A to point B – no matter how many worlds or years away.

f73f595174cdbb50168e94c80018c5101
2007-11-08 15:44:33

ESA’s comet chaser, Rosetta, is on its way to its second close encounter with Earth on 13 November. The spacecraft’s operators are leaving no stones unturned to make sure Earth’s gravity gives it the exact boost it needs en route to its destination.


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...

More Articles (3 articles) »
Word of the Day
saggar
  • A ceramic container used inside a fuel-fired kiln to protect pots from the flame.
The word 'saggar' may come from 'safeguard'.
Related