Showing 20 articles starting at article 901
Categories: Geoscience: Earthquakes, Space: Structures and Features
Published Alien radioactive element prompts creation rethink
(via sciencedaily.com) The first-ever discovery of an extraterrestrial radioactive isotope on Earth has scientists rethinking the origins of the elements on our planet.
Published Hubble captures giant star on the edge of destruction
(via sciencedaily.com) In celebration of the 31st anniversary of the launching of NASA's Hubble Space Telescope, astronomers aimed the renowned observatory at a brilliant 'celebrity star,' one of the brightest stars seen in our galaxy, surrounded by a glowing halo of gas and dust.
Published Bubble with titanium trigger titanic explosions
(via sciencedaily.com) Scientists have found fragments of titanium blasting out of a famous supernova. This discovery, made with NASA's Chandra X-ray Observatory, could be a major step in pinpointing exactly how some giant stars explode.
Published Surprise twist suggests stars grow competitively
(via sciencedaily.com) Original source A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a core accretes as it develops, and not the initial mass of the core, is the key factor in deciding the final mass of the produced star.
Published Baked meteorites yield clues to planetary atmospheres
(via sciencedaily.com) Original source In a novel laboratory investigation of the initial atmospheres of Earth-like rocky planets, researchers heated pristine meteorite samples in a high-temperature furnace and analyzed the gases released. Their results suggest that the initial atmospheres of terrestrial planets may differ significantly from many of the common assumptions used in theoretical models of planetary atmospheres.