News tagged with orbit
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) |
37
|
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) |
47
|
Kepler spacecraft discovers 'invisible world'
Usually, running five minutes late is a bad thing since you might lose your dinner reservation or miss out on tickets to the latest show. But when a planet runs five minutes late, astronomers get excited because ...
Sep 08, 2011 |
4.9 / 5 (32) |
5
|
A wealth of habitable planets in the Milky Way
An international team has used the technique of gravitational microlensing to measure how common planets are in the Milky Way.
Jan 11, 2012 |
4.8 / 5 (29) |
102
|
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 |
5 / 5 (24) |
7
|
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) |
24
|
Dwarf planet mysteries beckon to New Horizons
(PhysOrg.com) -- At this very moment one of the fastest spacecraft ever launched -- NASA's New Horizons -- is hurtling through the void at nearly one million miles per day. Launched in 2006, it has been in ...
Space & Earth / Space Exploration
Sep 05, 2011 |
5 / 5 (22) |
11
|
NASA OKs Feb. launch of private space station trip
A private California company will attempt the first-ever commercial cargo run to the International Space Station in February.
Space & Earth / Space Exploration
Dec 09, 2011 |
4.9 / 5 (22) |
20
Quarter-mile-wide asteroid coming close to Earth
(AP) -- An asteroid bigger than an aircraft carrier will dart between the Earth and moon on Tuesday - the closest encounter by such a huge rock in 35 years.
Space & Earth / Space Exploration
Nov 05, 2011 |
4.6 / 5 (22) |
225
Bus-sized asteroid shaves by Earth
An asteroid about the size of a bus shaved by Earth on Friday in what spacewatchers described as a "near-miss," though experts were not concerned about the possibility of an impact.
Space & Earth / Space Exploration
Jan 28, 2012 |
4.6 / 5 (21) |
21
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) |
2
|
NASA studying ways to make 'tractor beams' a reality
Tractor beams -- the ability to trap and move objects using laser light -- are the stuff of science fiction, but a team of NASA scientists has won funding to study the concept for remotely capturing planetary ...
Oct 31, 2011 |
4.3 / 5 (21) |
38
|
'Darkest' world enlightens astronomers about mysterious light-gobbling planet
(PhysOrg.com) -- A giant Jupiter-like gas planet has been revealed to be the most light-thirsty object in the known universe -- a finding that may help astronomers better understand a mysterious characteristic ...
Sep 27, 2011 |
4.9 / 5 (18) |
53
|
Giant planet ejected from the solar system
(PhysOrg.com) -- Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in ...
Nov 10, 2011 |
4.2 / 5 (21) |
34
|
Could dark matter not matter?
You probably want to put on your skeptical goggles and set them to maximum for this one. An Italian mathematician has come up with some complex formulae that can, with remarkable similarity, mimic the rotation ...
Dec 05, 2011 |
4.4 / 5 (20) |
102
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.
