A colorful, festive image from NASA shows different types of light containing the remains of not one, but at least two exploded stars. This supernova remnant is known as 30 Doradus B (30 Dor B for short) and is part of a larger region of space where stars have been continuously forming for the past ...
Astronomers at Caltech have used a machine learning algorithm to classify 1,000 supernovae completely autonomously. The algorithm was applied to data captured by the Zwicky Transient Facility, or ZTF, a sky survey instrument based at Caltech’s Palomar Observatory. Christoffer Fremling, a staff astronomer at Caltech and the mastermind behind the new algorithm, dubbed SNIascore, said: ...
An international research team led by the University of Minnesota has measured the size of a supernova that exploded more than 11 billion years ago. Detailed images show the exploding star cooling and could help scientists learn more about the stars and galaxies present in the early universe. The paper is published in Nature. Patrick Kelly, ...
When a star explodes (a supernova), it sends its intense burst of light out in all directions that have been captured in telescope images. However, on rare occasions, in the months and years that follow, rings of light or “light echoes” spread out from the original supernova position. This is described in a recent paper in Astrophysical Journal ...
A quadruple star system discovered in 2017 and recently observed at the University of Canterbury Mt John Observatory could represent a new channel by which thermonuclear supernova explosions can occur in the Universe, according to results published in Nature Astronomy by an international team of astronomers. The rare double-binary star system HD74438 was discovered in ...
Combining images taken with the Hubble Space Telescope over more than 20 years, a team of UA researchers has discovered that Eta Carinae, a very massive star system that has puzzled astronomers since it erupted in a supernova-like event in the mid-19th century, has a past that’s much more violent than they thought. The findings ...
An international group of astronomers led by Benjamin Thomas of the University of Texas at Austin has used observations from the Hobby-Eberly Telescope (HET) at the university’s McDonald Observatory to unlock a puzzling mystery about a supernova explosion discovered several years ago and evolving even now. The results, published in The Astrophysical Journal, will help astronomers better ...
Was the Earth showered with radioactive debris from a series of massive supernova explosions between 3.2 and 1.7 million years ago? Scientists say the evidence suggests the answer is yes! The team of scientists believes the evidence they have discovered proves that a series of massive supernova explosions near our solar system would have rained ...
In a case of cosmic mistaken identity, an international team of astronomers revealed that what they once thought was a supernova is actually periodic flaring from a galaxy where a supermassive black hole gives off bursts of energy every 114 days as it tears off chunks of an orbiting star. Six years after its initial ...
Dr. Tana Joseph, from the Department of Physics and Astronomy, contributed to a survey of the nearby Small Magellanic Cloud (SMC), a nearby dwarf galaxy. Dr. Joseph is the first author of the resultant paper, published in the journal Monthly Notices of the Royal Astronomical Society. The researchers discovered two potential new supernova remnants — ...
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