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Latest Planetary systems Stories

NASA Finds New Asteroid Belt Discovered Orbiting Vega
2013-01-09 15:11:09

redOrbit Staff & Wire Reports - Your Universe Online A team of U.S. astronomers has discovered what looks to be a large asteroid belt orbiting around Vega, the second-brightest star in the northern sky, NASA officials announced on Tuesday. Using data obtained from the Spitzer Space Telescope and the European Space Agency's (ESA) Herschel Space Observatory, the researchers discovered infrared light emitted by warm and cold dust in bands around both Vega and Fomalhaut, a second...

Fomalhaut b’s Odd Orbit May Be Caused By Star’s Vast Debris Disk
2013-01-09 11:45:36

redOrbit Staff & Wire Reports — Your Universe Online According to newly released images from the Hubble Space Telescope, a vast debris belt circling around a nearby star is wider than scientists believe, and the unusual orbit of a planet traveling around that star could be to blame. In a statement released Tuesday, NASA officials stated that the images reveal that the debris disk traveling around the star Fomalhaut actually spans from 14 to 20 billion miles from the star...

Planets Galore Found By Kepler
2013-01-08 11:28:45

Brett Smith for redOrbit.com - Your Universe Online After completing a new analysis of data from the Kepler space observatory, NASA scientists announced that they have identified 461 new planet candidates – including four that closely mirror the size and distance from their sun as Earth. Kepler´s mission to find Earth-like planets was recently extended to 2016 after difficulties arose in processing the large volume of data produced by the orbiting observatory. Since the most...

Binary Star Orbit Shifts Could Force Planetary Ejections
2013-01-07 03:28:35

redOrbit Staff & Wire Reports - Your Universe Online The orbits of distant binary stars can become altered over time, potentially causing violent disruptions in their planetary systems and possibly causing worlds to become scattered or ejected, an international team of astrophysicists has discovered in a new study. According to the researchers, all planetary systems in which one star is orbited by a second, companion star, can be altered by the gravity of the companion star, but...

Our Galaxy Abounds With Planets Says New Study
2013-01-03 14:45:20

Lee Rannals for redOrbit.com - Your Universe Online Listen to the podcast “How Planets Form” with redOrbit's Dr. John Millis and planet-hunting expert Dr. Eric Mamajek of the University of Rochester. Astronomers from California Institute of Technology (Caltech) wrote in the Astrophysical Journal that our galaxy may be filled with more planets than researchers had previously thought — a discovery that could have deep implications for our understanding of the universe....

How Planets Form: Your Universe Today Podcasts
2012-12-31 09:56:42

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Starting in early 2013, redOrbit will be launching a new podcast series called Your Universe Today, where we interview leading scientists about cutting-edge research in everything from space travel to the origins of our Universe. But we´re in the holiday spirit and couldn´t wait until January to unveil our new podcast project, so we´ve decided to give you a sneak peak of what´s to come. In...

Astronomers Find Infant Solar System
2012-12-05 14:16:15

Lee Rannals for redOrbit.com - Your Universe Online The youngest still-forming solar system ever seen has been discovered by astronomers and reported about in the journal Nature. Astronomers found an infant star surrounded by a swirling disk of dust and gas more than 450 light-years from Earth in the constellation Taurus. The star has about one-fifth the mass of the Sun, but the scientists say it will likely pull in material from its surroundings to eventually match the Sun's mass....

Astronomers Discover Comets Scattered Throughout Planetary Systems
2012-11-27 14:21:31

Lee Rannals for redOrbit.com — Your Universe Online Astronomers have discovered vast comet belts that are surrounding two nearby planetary systems using the European Space Agency's (ESA) Herschel space observatory. Scientists found that that nearby planetary systems, GJ 581 and 61 Vir, have been found to host vast amounts of cometary debris. The ESA observatory detected the signatures of cold dust in quantities that mean these systems must have at least 10 times more...


Latest Planetary systems Reference Libraries

8_2c71772f2c3a31994d5208d4518632494
2004-10-19 04:45:44

Cosmogony -- Cosmogony is the study of the origins of celestial objects. It is most commonly used to refer to the study of the origin of the solar system. Currently, the most widely accepted theory is that the solar system was formed roughly 5 billion years ago with the collapse of a nebula of gas and dust, likely caused by shock waves generated by a nearby supernova. The solar system would have formed as a member of a star cluster, now long-since dispersed throughout the Milky Way over...

6_9e1c3aab8f24d964cf24588309b138472
2004-10-19 04:45:42

Solar Nebula -- In astronomy, the solar nebula is the gaseous cloud from which, in the so-called nebular hypothesis of the origin of the solar system, the Sun and planets formed by condensation. In 1755 the German philosopher Immanuel Kant suggested that a nebula in slow rotation, gradually pulled together by its own gravitational force and flattened into a spinning disk, gave birth to the Sun and planets. A similar model, but with the planets being formed before the Sun, was proposed...

6_f3ae28666ea2fe9e06e16221eea19d522
2004-10-19 04:45:41

Extrasolar Planet -- An extrasolar planet is a planet orbiting around a star other than the Sun. Extrasolar planets were first discovered in the 1990s as a result of improved telescope technology, CCD and computer-based image processing which allowed far more accurate measurements of stellar motions. The first extrasolar planets were reported by the astronomer Aleksander Wolszczan in 1993, orbiting the pulsar PSR 1257+12. Subsequent investigation has determined that they are only planets...

4_2263b8f4e602bddd69c225b3bc2c46aa2
2004-10-19 04:45:41

Asteroid Belt -- The Asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. It is believed that, during the first million years of the solar system history, planets formed by accretion of planetesimals. Ripetute collisions led to the familiar rocky planets and to the gas giant's cores. However, in this zone of the system the strong gravity of Jupiter inhibited the final stages...

3_26342a6670b6131c97d5fc3f8796ebd92
2004-10-19 04:45:40

Epsilon Eridani -- Epsilon Eridani is a main-sequence star in the constellation of Eridanus (the river). It is often used in science fiction because it is extremely sunlike, and in the fictional Star Trek universe it is the home sun of the planet Vulcan which is home to Mr. Spock. It is the third closest star visible without a telescope. It has 85% of the Sun's mass, almost that much of its diameter, and 28% of its luminosity. It is 10.5 light years from Earth. Its spectrum is...

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Word of the Day
lambent
  • Licking.
  • Hence Running along or over a surface, as if in the act of licking; flowing over or along; lapping or bathing; softly bright; gleaming.
This word comes the Latin 'lambere,' to lick.
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