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Gas giants jump into planet formation early
01-08-2007 · EurekAlert!Gas-giant planets like Jupiter and Saturn form soon after their stars do, according to new research.
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Keywords: gas, giants, jump, planet, formation, giant
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Similar news on "Gas giants jump into planet formation early":
- Watching How Planets Form: Anatomy Of A Planet-forming Disc Around A Star More Massive Than The Sun
09-30-2006 · ScienceDaily
With the VISIR instrument on ESO's Very Large Telescope, astronomers have mapped the disc around a star more massive than the sun. The very extended and flared disc most likely contains enough gas and dust to spawn planets. It provides the rare opportunity to witness the conditions prevailing prior to or during planet formation.
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- Day and night temps measured on an extrasolar planet
10-12-2006 · EurekAlert!
For the first time, astronomers have measured the day and night temperatures of a planet outside our solar system. The team found that a giant Jupiter-like gas planet orbiting very close to its star is blisteringly hot on one side, and frigid on the other.
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- NASA scientists detect spectrum of planets orbiting other stars
02-22-2007 · EurekAlert!
For the first time, scientists at Goddard have obtained a spectrum, or molecular fingerprint, of a planet orbiting another star. Using spectroscopy, scientists were able to identify silicon dust in clouds on a gas-giant planet called HD 209458b. That planet is located 150 light years from Earth.
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- Ancient rocks show how young Earth avoided becoming giant snowball
02-05-2007 · EurekAlert!
A greenhouse gas that has become the bane of modern society may have saved Earth from completely freezing over early in the planet's history, according to the first detailed laboratory analysis of the world's oldest sedimentary rocks.
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- Astronomers discover record 5th planet around nearby star 55 Cancri
11-06-2007 · EurekAlert!
A record-breaking fifth planet has been discovered around 55 Cancri, a yellowish star 41 lightyears from Earth and now the only known star apart from the Sun with 5 planets. The discovery implies that the star has more planets that are smaller than the gas giants found so far and possibly include a rocky, Earth-like planet, according to astronomers Geoff Marcy of UC-Berkeley and Debra Fischer of San Francisco State University.
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- The fine line between stability and instability -- when do gas giants reach the point of no return?
12-05-2007 · EurekAlert!
Astronomers at UCL have identified the point at which a star causes the atmosphere of an orbiting gas giant to become critically unstable. Depending upon their proximity to a host star, giant Jupiter-like planets have atmospheres which are either stable and thin, or unstable and rapidly expanding. The research enables us to work out whether planets in other systems are stable or unstable by using a 3-D model to characterize their atmospheres.
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- Fossil record suggests insect assaults on foliage may increase with warming globe
02-11-2008 · EurekAlert!
More than 55 million years ago, the Earth experienced a rapid jump in global carbon dioxide levels that raised temperatures across the planet. Now, researchers studying plants from that time have found that the rising temperatures may have boosted the foraging of insects. As modern temperatures continue to rise, the researchers believe the planet could see increasing crop damage and forest devastation.
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- Extreme star cluster bursts into life in new Hubble image
10-02-2007 · EurekAlert!
The NASA/ESA Hubble Space Telescope has captured a spectacular image of NGC 3603, a giant nebula hosting one of the most prominent massive young clusters in the Milky Way, thus supplying a prime template for star formation studies.
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- Researchers link ocean organisms with increased cloud cover and potential climate change
11-06-2006 · EurekAlert!
Atmospheric scientists have reported a new and potentially important mechanism by which chemical emissions from ocean phytoplankton may influence the formation of clouds that reflect sunlight away from our planet.
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- Enceladus geysers mask the length of Saturn's day
03-22-2007 · European Space Agency (ESA)
In a David and Goliath story of Saturnian proportions, the little moon Enceladus is weighing down giant Saturn's magnetic field so much that the field is rotating slower than the planet. This phenomenon makes it nearly impossible to measure the length of the Saturn day using techniques that work at the other giant planets.
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