Latest Extrasolar planet Stories
Experts hunting for extraterrestrial life on extrasolar planets and elsewhere in the solar system are joining forces in what NASA is calling “an unprecedented initiative dedicated to the search for life on planets outside our solar system,” the US space agency announced Monday.
Astronomers have probed deeper than before into a planetary system 130 light-years from Earth. The observations mark the first results of a new exoplanet survey called LEECH (LBT Exozodi Exoplanet Common Hunt), and are published yesterday in the journal Astronomy and Astrophysics.
Thanks to NASA’s Spitzer Space Telescope and a technique known as microlensing, a team of astronomers has located one of the most distant exoplanets ever discovered – a remote gas planet located approximately 13,000 light-years from Earth.
Good news! Experts have analyzed thousands of exoplanets in our galaxy and the calculations show that billions of those stars could have planets in the habitable zone.
NASA’s planet-hunting Kepler spacecraft, which is responsible for discovering more than half of all known planets located beyond our solar system, celebrated its sixth birthday on Saturday, and we thought it would be a good time to take a look back its greatest achievements.
Astronomers just can't decide on whether GJ 581d, a super-Earth planet, is real or if it is just 'noise.'
Astronomers have used NASA's Hubble Space Telescope to take the most detailed edge on picture to date of a large disk of gas and dust encircling the 20 million-year-old star Beta Pictoris.
Not much escapes the sight of the European Southern Observatory’s Very Large Telescope in Chile, but astronomers using the powerful four-telescope array have been unable to pinpoint the location of a brown dwarf star believed to be orbiting a nearby binary star system.
We may not yet be able to assume that intelligent-life exists on other planets, but a team of Australian scientists are confident there are plenty of planets within our galaxy capable of supporting it--hundreds of billions of “Earth-like” planets, in fact.
Astronomers have discovered the oldest known planetary system ever – a star that is more than 11 billion years old and orbited by at least five rocky planets that are all smaller than Earth.
Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...
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...
Terrestrial Planet -- A terrestrial planet is a planet that is mostly composed of silicate rocks and may or may not have a relatively thin atmosphere. The term is derived from the Greek word for Earth, so an alternate definition would be those planets that are more Earth-like than not. Terrestrial planets are very different from gas giants, which may or may not have solid surfaces and are composed mostly of hydrogen and helium in various physical states. Only one terrestrial planet,...
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 -- 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...
- A person or thing gazed at with wonder or curiosity, especially of a scornful kind.
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