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French-British astronomer team has demonstrated an innovative Adaptive Optics technology (so-called Multi-object Adaptive Optics (MOAO)) (...)
The Comet Hartley 2 orbits the Sun with a period of 6.5 years. This year, it passed closest to the Sun on 28 October at 1.059 AU (Astronomical (...)
Thanks to CoRoT data (note 2), researchers at the Observatoire de Paris and an international team have demonstrated that red-giants, the fate (...)
This is a fortunate, totally unexpected discovery: searching for a local debris disk with the IRAM-30m telescope, an international team, led by (...)
The distance of the most remote galaxy in the Universe has just been measured, by a European team of astronomers, led by a researcher from (...)
NASA has selected the scientific instruments for Solar Probe Plus, the first space mission to explore the Sun’s atmosphere. Solar Probe Plus (...)
The emission of diffuse light in the mid infrared from interstellar cloud dense cores has been searched thoroughly in the Galaxy. This emission, (...)
After the Big-bang, the Universe experienced a dark age, just after the hydrogen atoms recombined, and before the first sources (stars and (...)
For over twenty years the lithium abundance in old stars (the Spite plateau) has been considered a primary indicator of the baryonic density of (...)
The total solar eclipse of July 11, 2010 was observed in Easter Island by Vincent Coudé du Foresto (LESIA) and Dominique Proust (GEPI). This (...)
Using ESO’s world-leading HARPS instrument, a European team including an astronomer from Paris Observatory has discovered a planetary system (...)
On June 14, the CoRoT team announces the discovery of a brown dwarf and six new exoplanets, with very different characteristics. CoRoT, (...)
A new analysis of dark matter particle mass, taking into account theory, observations of dwarf spheroidal satellite galaxies of the Milky Way (...)
Numerical simulations performed by two astrophysicists from Paris Observatory show that stars deeply plunging into the tidal radius of a massive (...)
The CoRoT spacecraft, managed by CNES at the initiative of LESIA (with a contribution of Austria, Belgium, Brazil, ESA, Germany and Spain), (...)
Observers are more and more familiar with getting their data from the Virtual Observatory (VO), for example obtaining images and spectra of (...)
Uranus is a very peculiar planet in the solar system: its proper spin axis is almost aligned with the plane of its orbit around the Sun, (...)
Astronomers have observed that galaxies in the distant Universe have a star formation rate (SFR) at least 10 times higher than local galaxies. (...)
By imaging the pulsating Mira star Chi Cygni with infrared interferometry, a team led by astronomers from Paris Observatory has shown how the (...)
Since the beginning of modern cosmology using the theory of general relativity, the only models used to describe the geometry and dynamics of (...)
By using interferometry, an international team led by an astronomer of Paris Observatory (LESIA) obtained an unprecedented image of the (...)
In general, the surface of the atmosphere-free small bodies of the solar system looks older through micrometeorite impacts, solar wind and (...)