An amateur astronomer in Argentina captured images of a distant galaxy before and after the supernova's 'shock breakout' - when a supersonic pressure wave from the exploding core of the star hits and heats gas at the star's surface to a very high temperature, causing it to emit light and rapidly brighten. Victor Buso's chances of such a discovery, his first supernova, is estimated at one in 10 million or perhaps even as low as one in 100 million.
Astronomers reveal a new high resolution map of the magnetic field lines in gas and dust swirling around the supermassive black hole at the centre of our Galaxy, published in a new paper in Monthly Notices of the Royal Astronomical Society. The team, led by Professor Pat Roche of the University of Oxford, created the map, which is the first of its kind, using the CanariCam infrared camera attached to the Gran Telescopio Canarias sited on the island of La Palma.
First light from a supernova is hard to capture; no one can predict where and when a star will explode. An Argentinian amateur astronomer has now captured on film this first light, emitted when the exploding core hits the star's outer layers: shock breakout. Subsequent observations by UC Berkeley astronomers using the Lick and Keck observatories helped identify it as a Type IIb supernova that slimmed down from 20 to 5 solar masses before exploding.
An international team of researchers from NASA Ames Research Center, Environmental and Radiation Health Sciences Directorate at Health Canada, Canadian Nuclear Laboratories, Belgian Nuclear Research Centre, Oxford University, Insilico Medicine, Insilico Medicine Taiwan, the Biogerontology Research Foundation, Boston University, Johns Hopkins University, University of Liverpool, University of Lethbridge, Ghent University, Center for Healthy Aging and many others have published a roadmap toward enhancing human radioresistance for space exploration and colonization.
Physicists insist on determinism: your past and present determine your future uniquely, per Einstein's equations of general relativity. They call this strong cosmic censorship. A UC Berkeley mathematician found some types of black holes -- charged, non-rotating objects in an expanding universe -- that allow an observer inside the black hole to travel across a horizon into a place where the past is obliterated and there are an infinite number of possible futures for every initial state.
The precise mechanism driving pulsating auroras, long unknown, has now been identified with help from NASA's THEMIS mission.
NASA's Terra satellite passed over the Southern Pacific Ocean and saw the low pressure area previously known as Tropical Cyclone Gita, affecting New Zealand.
An international team of astronomers, including researchers from the University of Pennsylvania, has confirmed the discovery of the most distant supernova ever detected, a huge cosmic explosion that took place 10.5 billion years ago when the universe was only a quarter of its current age.
A recent study confirms the predictions made by a group of SISSA and ICTP scientists in a study published in Science in 1999. Liquid and solid at the same time, superionic water could be found on Uranus and Neptune.
Using ALMA to observe an active galaxy with a strong ionized gas outflow from the galactic center, a team led by Dr. Toba of ASIAA (Taiwan) has obtained a result making astronomers even more puzzled -- the team clearly detected CO gas associated with the galactic disk, yet they have also found that the CO gas which settles in the galaxy is not affected by the strong ionized gas outflow launched from the galactic center.