Charting the heavens like never before, via Sloan Digital Sky Survey
The next phase of a global drive to map the night sky will bring the cosmos into greater focus than at any in human history.
Silhouettes of early galaxies reveal few seeds for new stars
(Phys.org) —An international team of astronomers has discovered that gas around young galaxies is almost barren, devoid of the seeds from which new stars are thought to form – molecules of hydrogen.
Hubble sees a galaxy with a glowing heart
(Phys.org) —This view, captured by the NASA/ESA Hubble Space Telescope, shows a nearby spiral galaxy known as NGC 1433. At about 32 million light-years from Earth, it is a type of very active galaxy known ...
Out of an hours-long explosion, a stand-in for the first stars
Astronomers analyzing a long-lasting blast of high-energy light observed in 2013 report finding features strikingly similar to those expected from an explosion from the universe's earliest stars. If this ...
When does a physical system compute?
Can physical systems from bacteria to black holes act as a computer? A University of York computer scientist and colleagues from the universities of Oxford and Leeds address this question in newly published research which ...
Cosmic accounting reveals missing light crisis
Something is amiss in the Universe. There appears to be an enormous deficit of ultraviolet light in the cosmic budget.
Supermassive black hole blows molecular gas out of a galaxy at 1 million kilometres per hour
(Phys.org)—New research by academics at the University of Sheffield has solved a long-standing mystery surrounding the evolution of galaxies, deepening our understanding of the future of the Milky Way.
Black hole fireworks in nearby galaxy
(Phys.org) —Celebrants this Fourth of July will enjoy the dazzling lights and booming shock waves from the explosions of fireworks. A similarly styled event is taking place in the galaxy Messier 106, as ...
Athena to study the hot and energetic universe
ESA has selected the Athena advanced telescope for high-energy astrophysics as its second 'Large-class' science mission.
Are ultra-luminous galaxies colliding?
(Phys.org) —ltra-luminous infrared galaxies ((ULIRGs) are galaxies whose luminosity exceeds that of a trillion suns, By way of comparison, our Milky Way galaxy has a typical modest luminosity of only about ...
Black hole trio holds promise for gravity wave hunt
The discovery of three closely orbiting supermassive black holes in a galaxy more than four billion light years away could help astronomers in the search for gravitational waves: the 'ripples in spacetime' ...
Chile hilltop razed for world's largest telescope (Update)
Construction on the world's largest optical telescope began with a bang Thursday, as workers demolished a hilltop in Chile's Atacama desert.
Astronomers pierce galactic clouds to shine light on black hole development
An international team of scientists including a Virginia Tech physicist have discovered that winds blowing from a supermassive black hole in a nearby galaxy work to obscure observations and x-rays.
How much of the universe is black holes?
We all fear black holes, but how many of them are there out there, really? Between the stellar mass black holes and the supermassive ones, just how much of our Universe is black holes?