Star-forming galaxies are responsible for creating gamma rays that until now had not been associated with a known origin, researchers from The Australian National University (ANU) have confirmed. Lead author Dr. Matt Roth, from the ANU Research School of Astronomy and Astrophysics, said until now it has been unclear what created gamma rays — one of the most energetic ...
From the broadcasting of major events to tracking major developments on the planet and in the atmosphere, satellites launched by various countries benefit the human population in many ways. However, few are aware that these satellites are also causing light pollution. Results of a new study show that the satellites placed in orbit around the ...
A research team, led by astronomers from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC), has discovered 591 high-velocity stars based on data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) and Gaia, and 43 of them can even escape from the Galaxy. The study was published online in The Astrophysical Journal Supplement Series. ...
Astronomers have presented an explanation for the shapes of planetary nebulae. The discovery is based on a set of observations of stellar winds around aging stars. Contrary to common consensus, the team found that stellar winds are not spherical, but have a shape similar to that of planetary nebulae. The team concludes that interaction with ...
A gigantic, balloon-like structure has been hiding in plain sight, right in the center of our own galaxy. An international team of astronomers, including Northwestern’s Farhad Yusef-Zadeh, discovered the structure, which is one of the largest ever observed in the center of the Milky Way. The newly spotted pair of radio-emitting bubbles reach hundreds of ...
A renegade star exploding in a distant galaxy has forced astronomers to set aside decades of research and focus on a new breed of supernovae that can utterly annihilate its parent star — leaving no remnant behind. The signature event, something astronomers had never witnessed before, may represent the way in which the most supermassive ...
Astronomers have found the ghostly remains of one of the Universe’s first stars inside a rare, ancient star far, far away on the other side of our galaxy. ANU astronomer Dr. Thomas Nordlander said the parent of the star they discovered 35,000 light-years away in the Milky Way was about 10 times the mass of ...
Dark matter has been a mystery to scientists for a long time. A team of physicists from Vanderbilt University and Case Western Reserve University asked themselves a rather interesting question — “Has dark matter killed anyone?” Dark matter and death Macro dark matter particles are known to elastically scatter regular matter across a wide geometric ...
We’ve been staring at the stars and wondering what was up there for centuries. We’ve been using mirrors and prisms to construct telescopes to give us a better idea of what mysteries lie in the black, but we’re still limited in how far we can see. The FAST telescope in China is hoping to change ...
About a decade ago, astronomers discovered a population of small, but massive galaxies called “red nuggets.” A new study using NASA’s Chandra X-ray Observatory indicates that black holes have squelched star formation in these galaxies and may have used some of the untapped stellar fuel to grow to unusually massive proportions. Red nuggets were first ...
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