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Latest Planetary systems Stories

Vaporizing Super-Earth Helps Characterize Exoplanet Attributes
2012-08-03 14:45:31

Scientists collaborated recently to produce simulations of Earth-like planets being vaporized in order to help astronomers have a better grasp of what to look for in the atmosphere of candidate super-Earths.

Kepler-30 Distant Solar System Similar To Our Own
2012-07-26 06:01:50

Astronomers have used NASA's Kepler to help spot another planetary system that has its planet neatly aligned, similar to our own Solar System.

Vastly Different Planets Found Closely Orbiting Same Star
2012-06-22 04:33:13

Researchers working on NASA's Kepler Mission have discovered an unlikely pair of planets -- one similar to our planet, and the other roughly the size of Neptune -- locked in a surprisingly close orbit around a distant star located more than a thousand light years from Earth.

Small Planets Less Pickier For Host Stars Than Previously Thought
2012-06-14 14:22:29

New observations show that small planets may be more widespread in our galaxy than previously thought.

Focused Alien Hunt Coming Up Empty Thus Far
2012-06-04 03:15:31

A technique that allows radio astronomers to combine observations made simultaneously by multiple arrays has yet to detect any signs of extraterrestrial broadcast signals, Australian researchers have confirmed.

Rogue Planets Sometimes Captured By Stars
2012-04-18 03:28:47

New research suggests that billions of stars in our galaxy have captured rogue planets that once roamed interstellar space.

NASA's Kepler Mission Extended Through 2016
2012-04-05 07:07:53

Funding for NASA's planet-seeking Kepler Mission, which was scheduled to expire in November, has been renewed for four more years, the US space agency announced on Wednesday.

2012-04-02 09:52:10

Complex organic compounds, including many important to life on Earth, were readily produced under conditions that likely prevailed in the primordial solar system.

Super-Earth Transfer Of Life Unlikely
2012-03-22 04:04:10

While scientists believe conditions suitable for life might exist on the so-called "super-Earth" in the Gliese 581 system, it's unlikely to be transferred to other planets within that solar system.


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...

Extrasolar Planet
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
bretelles
  • In dressmaking, straps running from the belt in front over the shoulders to the belt in the back, with more or less elaboration of trimming and outline. They usually broaden at the shoulder and narrow toward the waist.
The word 'bretelles' comes from a French word meaning 'braces'.