(Phys.org) —A team of astronomers using ESO's Very Large Telescope has imaged a faint object moving near a bright star. With an estimated mass of four to five times that of Jupiter, it would be the least ...
Jun 03, 2013
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(Phys.org) —Detecting alien worlds presents a significant challenge since they are small, faint, and close to their stars. The two most prolific techniques for finding exoplanets are radial velocity (looking ...
May 13, 2013
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Astronomers have used the Subaru Telescope to show that the HAT-P-7 planetary system, which is about 1040 light years from Earth in the constellation Cygnus, includes at least two giant planets and one companion ...
Jan 25, 2013
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In 1901 the star GK Persei gave off a powerful explosion that has not stopped growing and astonishing ever since. Now a team of Spanish and Estonian astronomers has reconstructed the journey of the emitted ...
Jan 24, 2013
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(Phys.org)—On 6 June 2012 Venus passed directly between the Earth and the Sun, in a so-called transit where the planet appears as a silhouette against the solar disk, something that will not happen again ...
Jan 07, 2013
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A team of Italian astronomers performed a very difficult measurement for which it was necessary to use the most advanced instrumentation in combination with an unusual technique, so as to involve even the Moon as a natural ...
Dec 11, 2012
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(Phys.org)—Scattered around the Milky Way are stars that resemble our own sun—but a new study is finding that any planets orbiting those stars may very well be hotter and more dynamic than Earth.
Dec 03, 2012
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Located 43 light-years away in the southern constellation Pictor, the orange-colored dwarf star HD 40307 has previously been found to hold three "super-Earth" exoplanets in close orbit. Now, a team of researchers ...
Nov 08, 2012
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This small satellite of primarily Swiss design was chosen above twenty-five other projects. Named CHEOPS for "CHaracterizing ExOPlanet Satellite," the selection of this device was just announced by the European ...
Oct 25, 2012
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(Phys.org)—The payload module of ESA's billion-star surveyor Gaia is integrated and ready for the next stage of rigorous testing it must undergo before launch next year. Once in space, Gaia will make preci ...
Sep 18, 2012
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A pair of Swiss astrophysicists who were the first to discover a planet from beyond our solar system were honoured Tuesday with a major Spanish science award.
Jan 24, 2012
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An international team has used the technique of gravitational microlensing to measure how common planets are in the Milky Way.
Jan 11, 2012
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Astronomers using ESO's world-leading exoplanet hunter HARPS have today announced a rich haul of more than 50 new exoplanets, including 16 super-Earths, one of which orbits at the edge of the habitable zone ...
Sep 12, 2011
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For many exoplanet systems that have been discovered by the radial velocity method, astronomers have found excess emission in the infrared portion of the spectrum. This has generally been interpreted as remnants ...
Sep 06, 2011
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Using the High Accuracy Radial velocity Planet Searcher (HARPS), a team of scientists at University of Geneva, Switzerland, led by the Swiss astronomer Stephane Udry made a sound discovery… an Earth-like ...
Sep 05, 2011
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