[PRESSE] [#SPACEBOURGET2017] Le Président de la République est reçu au Pavillon du CNES A l’occasion de l’inauguration du 52ème Salon International de l’Aéronautique et de l’Espace de Paris Le Bourget, qui se tient du lundi 19 au dimanche 25 juin au Bourget, Jean-Yves Le Gall, Président du CNES, accompagné de Thomas Pesquet, a reçu le
<em>Category</em> Actu Spatiale
[Vidéo] Visitez le pavillon du CNES au salon du Bourget 2017 ! Pour la 52e édition du Salon International de l’Aéronautique et de l’Espace, Vicnet vous fait découvrir le pavillon du CNES au Bourget. Suivez le guide !
New Kepler Planet Candidates There are 4,034 planet candidates now known with the release of the eighth Kepler planet candidate catalog. Of these, 2,335 have been confirmed as planets. The blue dots show planet candidates from previous catalogs, while the yellow dots show new candidates from the eighth catalog.
Kepler Habitable Zone Planets Highlighted are new planet candidates from the eighth Kepler planet candidate catalog that are less than twice the size of Earth and orbit in the stars’ habitable zone – the range of distances from a star where liquid water could pool on the surface of an orbiting planet.
Exoplanet Populations The population of exoplanets detected by the Kepler mission (yellow dots) compared to those detected by other surveys using various methods: radial velocity (light blue dots), transit (pink dots), imaging (green dots), microlensing (dark blue dots), and pulsar timing (red dots).
Studying the Stars with Kepler Kepler was the first NASA mission capable of detecting Earth-size planets, using the transit method, a photometric technique that measures the minuscule dimming of starlight as a planet passes in front of its host star.
Small Planets Come in Two Sizes Researchers using data from the W. M. Keck Observatory and NASA’s Kepler mission have discovered a gap in the distribution of planet sizes, indicating that most planets discovered by Kepler so far fall into two distinct size classes: the rocky Earth-size and super-Earth-size (similar to Kepler-452b), and the mini-Neptune-size
New Branch in Exoplanet Family Tree This sketch illustrates a family tree of exoplanets. Planets are born out of swirling disks of gas and dust called protoplanetary disks. The disks give rise to giant planets like Jupiter as well as smaller planets mostly between the size of Earth and Neptune.
Assembly Line of Planets This diagram illustrates how planets are assembled and sorted into two distinct size classes. First, the rocky cores of planets are formed from smaller pieces. Then, the gravity of the planets attracts hydrogen and helium gas. Finally, the planets are « baked » by the starlight and lose some gas.
[Comprendre] Des milliers de satellites interconnectés : le défi de demain Ils pèseront moins de 150 kg et auront une taille équivalente à celle d’une grosse machine à laver. En constellation entre 700 et 1200 km d’altitude, les nouveaux petits satellites veulent détrôner les gros monolithes placés actuellement à 36 000 km de la Terre.