Latest Astrodynamics Stories
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 Earthâ€“Moon system are planned before the spacecraft heads out to study comet 67/P Churyumov-Gerasimenko.
Experts gathered in Vienna, Austria this week to discuss solutions to deal with vast amount of space junk that is clogging up the Earthâ€™s orbit.
Two satellites collided in orbit on Tuesday, prompting NASA to announce it to be the first collision of its kind in space.
Orbital Sciences Corporation (NYSE:ORB) announced today that it will release its third quarter 2008 financial results prior to the opening of the market on Thursday, October 16, 2008.
-- Company Signs Long-Term Lease for First Phase of Chandler Expansion Plan That Would Support a 50% Growth in Employment During the Next Decade -- -- Fast-Growing Space Technology Company Also Renewing Lease on Current Facility for Another 11 Years -- Orbital Sciences Corporation Barron Beneski, 703-406-5528 Public and Investor Relations email@example.com Logo: http://www.orbital.com Orbital Sciences Corporation (NYSE:ORB), one of the world's leading space technology...
Orbital Sciences Corporation (NYSE:ORB), the world's leading manufacturer of smaller-sized geosynchronous (GEO) communications satellites, announced today that the AMC-21 satellite, which is based on the company's STAR-2 platform, was successfully launched into orbit during a mission that took place on Thursday, August 14, 2008.
By Lu, Feng Zhang, Xiaohu; Xu, Jianmin ABSTRACT An automatic image navigation algorithm for Feng Yun 2 (FY2) spin-stabilized geosynchronous meteorological satellites was determined at the National Satellite Meteorological Center (NSMC) of the China Meteorological Administration (CMA).
Starting this week, spacecraft controllers have been executing a series of maneuvers to gradually bring Venus Express closer to its host planet.
Orbital Sciences Corporation (NYSE:ORB) announced today that it will release its second quarter 2008 financial results prior to the opening of the market on Thursday, July 17, 2008.
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 spacecraftâ€™s journey from point A to point B â€“ no matter how many worlds or years away.
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...
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...
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...
- In the month which preceded the present; in the last month, as distinguished from the current or present month and all others.
More Images (121 images) »