A radio telescope in the Western Australian outback has captured a spectacular new view of the center of the galaxy in which we live — the Milky Way. The image from the Murchison Widefield Array (MWA) telescope shows what our galaxy would look like if human eyes could see radio waves. The Galactic Center of the ...
Astronomers are closing in on a signal that has been traveling across the Universe for 12 billion years, bringing them nearer to understanding the life and death of the first stars. In a paper on the preprint site arXiv, soon to be published in the Astrophysical Journal, a team led by Dr. Nichole Barry from Australia’s University ...
Scientists, including from The Australian National University (ANU), say they have detected a black hole swallowing a neutron star for the first time. These are the super-dense remains of dead stars. On Wednesday 14 August 2019, gravitational-wave discovery machines in the United States and Italy detected ripples in space and time from a cataclysmic event ...
Even though the black hole at the center of the Milky Way is a monster, it’s still rather quiet. Called Sagittarius A*, it’s about 4.6 million times more massive than our Sun. Usually, it’s a brooding behemoth. But scientists observing Sgr. A* with the Keck Telescope just watched as its brightness bloomed to over 75 times normal for ...
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 ...
An unusual supernova studied by multiple telescopes, including the SOAR telescope and other telescopes at the National Science Foundation’s (NSF) Cerro Tololo Inter-American Observatory (CTIO) and NSF’s Kitt Peak National Observatory (KPNO), is thought to herald the birth of a new black hole or neutron star, caught at the exact moment of its creation. Observations ...
If you’re standing in the Southern Hemisphere on a clear night, you can see two luminous clouds offset from the Milky Way. These clouds of stars are satellite galaxies of the Milky Way, called the Small Magellanic Cloud and the Large Magellanic Cloud, or SMC and LMC. Using newly released data from a new, powerful ...
Astronomers have detected radio jets belonging to a neutron star with a strong magnetic field — something not predicted by current theory, according to a new study published in Nature. The team, led by researchers at the University of Amsterdam, observed the object known as Swift J0243.6+6124 using the Karl G. Jansky Very Large Array radio ...
A multitude of discoveries are on the horizon after a much-awaited release that is based on 22 months of charting the sky as part of Gaia’s mission to produce the largest, most precise three-dimensional map of our Galaxy ever created. The new data includes positions, distance indicators, and motions of more than 1 billion stars, along with ...
While astronomers routinely study galaxies much farther away, they’re visible only because they glow with the brightness of billions of stars. And a supernova, often brighter than the galaxy in which it sits, also can be visible across the entire universe. Beyond a distance of about 100 million light-years, however, a star in these galaxies ...
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