News tagged with orbit
Dragon arrives at space station in historic 1st (Update 2)
The privately bankrolled Dragon capsule made a historic arrival at the International Space Station on Friday, triumphantly captured by astronauts wielding a giant robot arm.
Space & Earth / Space Exploration
May 25, 2012 |
5 / 5 (11) |
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Scientists measure Martian sand movement: Dune migration rates appear to be similar to those on Earth
Last year, images from NASA's Mars Reconnaissance Orbiter captured sand dunes and ripples moving across the surface of Mars—observations that challenged previously held beliefs that there was not a lot ...
Space & Earth / Space Exploration
May 09, 2012 |
5 / 5 (4) |
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Researchers find new form of Mars lava flow
High-resolution photos of lava flows on Mars reveal coiling spiral patterns that resemble snail or nautilus shells. Such patterns have been found in a few locations on Earth, but never before on Mars. The ...
Space & Earth / Space Exploration
Apr 26, 2012 |
5 / 5 (4) |
2
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Some orbits more popular than others in solar systems
(PhysOrg.com) -- In young solar systems emerging around baby stars, some orbits are more popular than others, resulting in “planet pile-ups” and “planet deserts."
Mar 19, 2012 |
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Maglev track could launch spacecraft into orbit
(PhysOrg.com) -- With the aim to make it easier to launch spacecraft into low Earth orbit (LEO), two researchers have turned to maglev technology to catapult a payload hundreds of miles above the Earth. While ...
Space & Earth / Space Exploration
Mar 13, 2012 |
4.4 / 5 (58) |
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First-ever images of atoms moving in a molecule captured
Using a new ultrafast camera, researchers have recorded the first real-time image of two atoms vibrating in a molecule.
Mar 07, 2012 |
4.3 / 5 (22) |
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In distance space, a water world: Hubble reveals a new class of extrasolar planet
(PhysOrg.com) -- An international team of astronomers led by Zachory Berta of the Harvard-Smithsonian Center for Astrophysics (CfA) made the observations of the planet GJ 1214b.
Feb 21, 2012 |
4.8 / 5 (24) |
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New super-earth detected within the habitable zone of a nearby star
(PhysOrg.com) -- An international team of scientists has discovered a potentially habitable super-Earth orbiting a nearby star. With an orbital period of about 28 days and a minimum mass 4.5 times that of ...
Feb 02, 2012 |
4.8 / 5 (37) |
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IBEX spacecraft measures 'alien' particles from outside solar system
(PhysOrg.com) -- Using data from NASA's Interstellar Boundary Explorer (IBEX) spacecraft, an international team of researchers has measured neutral "alien" particles entering our solar system from interstellar ...
Space & Earth / Space Exploration
Jan 31, 2012 |
5 / 5 (8) |
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Kepler announces 11 planetary systems hosting 26 planets
(PhysOrg.com) -- NASA's Kepler mission has discovered 11 new planetary systems hosting 26 confirmed planets. These discoveries nearly double the number of verified Kepler planets and triple the number of stars ...
Jan 26, 2012 |
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First of NASA's GRAIL spacecraft enters Moon orbit
(PhysOrg.com) -- The first of two NASA spacecraft to study the moon in unprecedented detail has entered lunar orbit.
Space & Earth / Space Exploration
Jan 01, 2012 |
4.1 / 5 (9) |
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Researchers use webs of lasers to remove entropy from a system causing quantum gases to cool
(PhysOrg.com) -- Many physicists around the world are hard at work trying to figure out new and exciting ways to create ultra-cold objects, the reason being is that if a system could be created that operates ...
Dec 22, 2011 |
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Can Earth-sized planets survive their star's expansion?
Two Earth-sized planets have been discovered circling a dying star that has passed the red giant stage. Because of their close orbits, the planets must have been engulfed by their star while it swelled up ...
Dec 21, 2011 |
4.7 / 5 (12) |
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Engineers fight for stranded Mars probe after 'sign of life' (Update)
Engineers fought desperately on Wednesday to save Russia's Phobos-Grunt spacecraft after the Martian probe sent "a first sign of life" more than two weeks after being stranded in orbit.
Space & Earth / Space Exploration
Nov 23, 2011 |
4.6 / 5 (18) |
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Research group proposes first system for assessing the odds of life on other worlds
(PhysOrg.com) -- Within the next few years, the number of planets discovered in orbits around distant stars will likely reach several thousand or more. But even as our list of these newly discovered "exoplanets" ...
Nov 21, 2011 |
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Orbit
In physics, an orbit is the gravitationally curved path of one object around a point or another body, for example the gravitational orbit of a planet around a star.
Historically, the apparent motion of the planets were first understood in terms of epicycles, which are the sums of numerous circular motions. This predicted the path of the planets quite well, until Johannes Kepler was able to show that the motion of the planets were in fact elliptical motions.[citation needed] Isaac Newton was able to prove that this was equivalent to an inverse square, instantaneously propagating force he called gravitation.[citation needed] Albert Einstein later was able to show that gravity is due to curvature of space-time, and that orbits lie upon geodesics. This is the current understanding.
For more information about Orbit, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
