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Latest Astrodynamics Stories

Running On Fumes
2012-07-04 16:41:34

When you consider the cost of launching a satellite, it’s small wonder that ESA is looking to keep them working as long as possible.

'Supermoon' Expected This Weekend
2012-05-05 15:05:08

The biggest and brightest full moon of the year will occur this weekend. An estimated 16% brighter than normal, this spectacular ‘Supermoon’ will be visible in the night sky on Saturday (May 5) at 11:35 p.m. EDT.

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2011-05-30 07:35:26

A team of researchers from the Royal Institute and Observatory of the Navy (ROA) in Cádiz (Spain) has developed a method to track the movement of geostationary objects using the position of the stars, which could help to monitor space debris.

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.

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2011-02-03 12:25:00

A Pentagon report warned that space is so littered with debris that a collision between satellites could set off an "uncontrolled chain reaction" capable of destroying the communications network on Earth.

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2010-11-10 13:30:00

Space analysts say that China has pulled off a tricky and uncommon feat in space flight, maneuvering one of its satellites to about 300 yards within another while they were orbiting Earth.

2010-11-03 00:00:39

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.

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2010-08-02 09:20:00

Global Aerospace Corporation (GAC) announced recently that Dr Kristin L Gates will present a paper on de-orbiting space junk at the August 2 Artificial and Natural Space Debris session of the AIAA Astrodynamics Specialists Conference in Toronto, Ontario, Canada.

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2010-07-26 09:45:00

When American space pioneer, Dr Robert L Forward, proposed in 1984 a way of greatly improving satellite telecommunications using a new family of orbits, some claimed it was impossible.

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2010-01-28 06:30:00

The major powers of the world are being called upon to clean up space “litter” that is becoming increasingly dangerous for spacecraft.


Latest Astrodynamics Reference Libraries

22_438736ec75b9bfaca9b25a90d91dcfaa2
2004-10-19 04:45:44

Autumnal Equinox -- In astronomy, is the equinox at the beginning of autumn in the northern hemisphere: the moment when the sun appears to cross the celestial equator, heading southward. The equinox occurs around September 22-24, varying slightly each year according to the 400 year cycle of leap years in the Gregorian Calendar. In the southern hemisphere, the equinox occurs at the same moment, but at the beginning of spring. There are two conventions for dealing with this: either the...

6_15cc05865f89c4801c5ff2a85d74a93c2
2004-10-19 04:45:42

Orbit -- An orbit is the path that an object makes around another object under the influence of some force. The classical example is that of the solar system, where the Earth, other planets, asteroids, comets, and smaller pieces of rubble are in orbit around the Sun; and moons are in orbit around planets. These days, many artificial satellites are in orbit around the Earth. Understanding orbits There are a few common ways of understanding orbits. -- As the object moves, it...

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
donative
  • A gift; a largess; a gratuity; a present; a dole.
The word 'donative' comes from a Latin word meaning 'to give'.
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