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Latest Terrestrial planet Stories

4a681b71ab1c699426d0041a22f520ae1
2008-04-06 13:00:00

British astronomers have discovered a solar system similar to ours, with two planets that closely match Saturn and Jupiter orbiting a star about half the size of the Sun. The finding suggests that systems like ours could be more common that previously thought, according to Martin Dominik of St Andrews University, who added that astronomers were on the brink of discovering many more such systems.  Dr Dominik presented his work at the Royal Astronomical Society's National Astronomy...

2008-04-03 16:54:49

Astronomers have struggled for centuries to find our solar system's planets, let alone any outside of our relatively puny cosmic neighborhood. Yet during only the past 13 years, observers have tracked down nearly 300 distant bodies beyond our system thanks to rapid advances in ground-based telescope technology and methods. Ten worlds alone were identified by a group of astronomers in the past six months using earthbound instruments, and another team of scientists just announced...

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2008-03-11 10:25:00

A rocky planet similar to Earth may be orbiting one of our nearest stellar neighbors and could be detected using existing techniques, according to a new study led by astronomers at the University of California, Santa Cruz. The closest stars to our Sun are in the three-star system called Alpha Centauri, a popular destination for interstellar travel in works of science fiction. UCSC graduate student Javiera Guedes used computer simulations of planet formation to show that terrestrial planets...

2eb485b7ec754576baf6563422d9e5d71
2008-02-14 16:05:00

Astronomers have discovered that rocky, terrestrial planets might orbit many, if not most, of the nearby sun-like stars in the disk of our galaxy. These new results suggest that worlds with potential for life are more common that we thought. This release is being issued jointly with the University of Arizona (UA). UA astronomer Michael Meyer (currently on sabbatical at the Harvard-Smithsonian Center for Astrophysics) used NASA's Spitzer Space Telescope to determine whether planetary...

79ec17a26b35af616cddba007ef6e4f9
2008-02-07 21:30:00

NASA's Deep Impact spacecraft is aiming its largest telescope at five stars in a search for alien (exosolar) planets as it enters its extended mission, called Epoxi.  Deep Impact made history when the mission team directed an impactor from the spacecraft into comet Tempel 1 on July 4, 2005. NASA recently extended the mission, redirecting the spacecraft for a flyby of comet Hartley 2 on Oct. 11, 2010.  As it cruises toward the comet, Deep Impact will observe five nearby stars with...

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2008-01-18 12:30:00

GAINESVILLE, Fla. "” A University of Florida-led sky survey that may double the number of known planets outside the solar system is part of a major new survey program announced today at the American Astronomical Society's annual meeting in Austin, Texas.The Sloan Digital Sky Survey III, slated to begin mid-year and end in mid-2014, consists of four independent surveys operated by the survey's consortium. One will probe the distant universe and seek to learn more about mysterious dark...

cec0ea867ffa8d37c91317a6e1c2fe401
2007-12-11 10:00:00

The NASA/ESA Hubble Space Telescope has given astronomers a fascinating new insight into the atmosphere of a planet in orbit around another star. The observations provide evidence of the presence of hazes in the atmosphere of the planet HD 189733b. A team of astronomers have used the NASA/ESA Hubble Space Telescope to detect, for the first time, strong evidence of hazes in the atmosphere of a planet orbiting a distant star. The discovery comes after extensive observations made recently with...

1a53f18a2b386efa161a9b0af9e5d58a1
2007-11-29 17:50:00

Ben Oppenheimer calls starlight "the bane of planet hunting." Although more than 250 planets are known to orbit other stars, so far no one has been able to get a good look at any of them. That's largely because a star's glare is millions of times brighter than a planet, so trying to see a planet next to a star is akin to trying to spot a firefly next to a spotlight, from thousands of miles away. But it's a problem Oppenheimer and his colleagues at the American Museum of Natural History in...

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2007-10-04 09:35:00

An Earth-like planet is likely forming 424 light-years away in a star system called HD 113766, say astronomers using NASA's Spitzer Space Telescope. Scientists have discovered a huge belt of warm dust - enough to build a Mars-size planet or larger - swirling around a distant star that is just slightly more massive than our sun. The dust belt, which they suspect is clumping together into planets, is located in the middle of the system's terrestrial habitable zone. This is the region around a...

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2007-07-19 11:21:43

"I just do it for the pictures," laughs Dr. David Imel as he points to the myriad posters of stars and galaxies hanging from the walls in his office at Caltech. But the picture Imel wants to see most doesn't exist yet "“ a pale blue dot orbiting a distant star. Another Earth. As the manager of the Michelson Science Center at Caltech, Imel coordinates a team of scientists and engineers whose goal is to find the elusive Earthlike planet. He and his team schedule and organize telescope...


Latest Terrestrial planet Reference Libraries

Planetary and Space Science
2012-05-28 10:21:45

Planetary and Space Science is a peer-reviewed scientific journal established in 1959 and published by Elsevier 15 times per year. As of May 2012, the editor-in-chief is Rita Schulz (The Netherlands). The journal publishes original research articles and short communications. The main focus is on solar system processes which encompass multiple areas of the natural sciences. Research that involves planetary and space sciences involves many disciplines. Celestial mechanics is part of these...

7_a23a0395183f2368aec4b62e1b9470672
2004-10-19 04:45:43

Terrestrial Planet Finder -- The Terrestrial Planet Finder is a proposed NASA telescope system capable of detecting extrasolar terrestrial planets. In May 2002, NASA chose two TPF mission architecture concepts for further study and technology development. Each would use a different means to achieve the same goal - to block the light from a parent star in order to see its much smaller, dimmer planets. That technology challenge has been likened to finding a firefly near the beam of...

6_07e7808819d3a0e0b1e9459490122f2b2
2004-10-19 04:45:42

Planet -- A planet is a body of considerable mass that orbits a star and that doesn't produce energy through nuclear fusion. Until recently, only nine were known (all of them in our own Solar system). As of the end of 2002 over 100 are known, with all of the new discoveries being extrasolar planets. Astronomers often call asteroids minor planets, and call the larger planetary bodies (those which are commonly called planets) major planets. Planets within the solar system can be...

Gas Giant
2004-10-19 04:45:41

Gas Giant -- A gas giant is a generic astronomical term invented by the science fiction writer James Blish to describe any large planet that is not composed mostly of rock or other solid matter. Gas giants may still have a solid core - in fact, it is expected that such a core is probably required for a gas giant to form - but the majority of its mass is in the form of gas (or gas compressed into a liquid state). Unlike rocky planets, gas giants do not have a well-defined surface. There...

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...

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