NASA: Amazing Experiments with Water in Zero Gravity. The Sagan Series. A Toy Train in Space. G2012-041_SDOYEAR2-540-MASTER_high. Osiris_citizenscience_540_MASTER_high. Dont_Judge_A_Moon_540_MASTER_high. G2011-035_Neutron_Stars-540-MASTER_high. G2011-076_SDO_June_7_Blast_high. Black Hole Caught Red-Handed in a Stellar Homicide.
Black Hole Caught Red-Handed in a Stellar Homicide PASADENA, Calif. – Astronomers have gathered the most direct evidence yet of a supermassive black hole shredding a star that wandered too close. NASA's Galaxy Evolution Explorer, a space-based observatory, and the Pan-STARRS1 telescope on the summit of Haleakala in Hawaii were among the first to help identify the stellar remains. Supermassive black holes, weighing millions to billions times more than the sun, lurk in the centers of most galaxies. These hefty monsters lie quietly until an unsuspecting victim, such as a star, wanders close enough to get ripped apart by their powerful gravitational clutches. Astronomers had spotted these stellar homicides before, but this is the first time they have identified the victim. "When the star is ripped apart by the gravitational forces of the black hole, some part of the star's remains falls into the black hole, while the rest is ejected at high speeds," Gezari said.
The Aurora. Zooming Into The Center Of The Milky Way [720p] CASSINI MISSION. Earth | Time Lapse View from Space, Fly Over | NASA, ISS. The Mountain. Outer Space. First Orbit - Trailer II. Video - Saturne et ses satellites : les découvertes de la sonde Cassini. La sonde Cassini 1 a permis d'observer la planète Saturne et ses satellites. La mission initiale de 4 ans a été doublée en raison de son succès. Avez-vous déjà partagé cet article? Partager sur Facebook Partager sur Twitter La sonde Cassini 1 a pour mission d'étudier la planète Saturne et ses satellites. Le projet est l'oeuvre du Jet Propulsion Laboratory (JPL) américain, de l'Agence spatiale européenne (pour le module de relais de Huygens) et l'Agence spatiale italienne (pour l'antenne de communication à haut gain).
Début février 2010, la mission de Cassini est allongée jusqu'en septembre 2012.