Lawrence Berkeley National Laboratory 14 Aug 2017, 23:29 UTC Scientists developed new theories and 3-D simulations to explain what’s at work in the mysterious jets of energy and matter beaming from the center of galaxies at nearly the speed of light. As much as half of the jets’ energy can escape in the form of X-rays and stronger forms of radiation. Researchers showed how two different mechanisms serve to reduce about half of the energy of these jets.
California Institute of Technology 14 Aug 2017, 22:38 UTC Astronomers using Caltech's Owens Valley Radio Observatory (OVRO) have found evidence for a bizarre lensing system in space, in which a large assemblage of stars is magnifying a much more distant galaxy containing a jet-spewing supermassive black hole. The discovery provides the best view yet of blobs of hot gas that shoot out from supermassive black holes.
NASA's Jet Propulsion Laboratory News and Features 11 Aug 2017, 19:08 UTC
NASA's Spitzer Space Telescope 11 Aug 2017, 16:09 UTC If we want to know more about whether life could survive on a planet outside our solar system, it’s important to know the age of its star. Young stars have frequent releases of high-energy radiation called flares that can zap their planets' surfaces. If the planets are newly formed, their orbits may also be unstable. On the other hand, planets orbiting older stars have survived the spate of youthful flares, but have also been exposed to the ravages of stellar radiation for a longer period of time.
NASA's Goddard Space Flight Center 11 Aug 2017, 14:21 UTC The subject of this NASA/ESA Hubble Space Telescope image is a dwarf galaxy named NGC 5949. Thanks to its proximity to Earth — it sits at a distance of around 44 million light-years from us, placing it within the Milky Way’s cosmic neighborhood — NGC 5949 is a perfect target for astronomers to study dwarf galaxies.
NASA's Jet Propulsion Laboratory News and Features 10 Aug 2017, 22:38 UTC NASA has selected six astrophysics Explorers Program proposals for concept studies. The proposed missions would study gamma-ray and X-ray emissions from clusters of galaxies and neutron star systems, as well as infrared emissions from galaxies in the early universe and atmospheres of exoplanets, which are planets outside of our solar system.
NASA's Chandra X-ray Observatory 10 Aug 2017, 18:10 UTC
Harvard-Smithsonian Center for Astrophysics 10 Aug 2017, 16:12 UTC NASA has announced that the Arcus X-ray mission concept has been selected for a "Phase A" study as part of the $250 million Medium-Class Explorer (MIDEX) program.