The universe may contain a staggering 40 quintillion black holes
Astronomers estimate that about 40 quintillion stellar-mass black holes exist within the observable universe, a number written as…
After Centuries of Research, Betelgeuse Turns Out to Be Two Stars, Not One
Artistic impression of Betelgeuse and its candidate companion, Betelgeuse B. The smaller blue-white star has been enlarged for…
Hubble finds four hidden stars just 65 light-years from Earth that astronomers could never see before |
Astronomers have directly detected four previously hidden white dwarfs orbiting nearby red dwarf stars, solving a long-standing observational…
Astronomers Detect the Hidden Process That May Trigger Star Birth
The illustration shows ambipolar diffusion in a collapsing prestellar core. Neutral molecules decouple from the magnetic field and…
Evidence for protostellar jets as a population of hadronic gamma-ray sources
Shu, F. H., Adams, F. C. & Lizano, S. Star formation in molecular clouds: observation and theory. Annu.…
Periodic radio and X-ray emission from an accreting white dwarf binary
Hotan, A. W. et al. Australian square kilometre array pathfinder: I. System description. Publ. Astron. Soc. Aust. 38,…
Scientists Discover Two Strange Dead Stars That Defy Astronomical Expectations
Two exotic white dwarf merger remnants have been found to share a striking set of unusual properties, including…
Gravitational-wave constraints on the pair-instability mass gap and nuclear burning in massive stars
Gravitational-wave observations of binary black holes have opened a new window onto massive-star evolution1,2,3,4,5, but population inferences remain…
Evidence of the pair-instability gap from black-hole masses
Fowler, W. A. & Hoyle, F. Neutrino processes and pair formation in massive stars and supernovae. Astrophys. J.…
WOH G64: Dramatic shift seen in one of universe’s biggest stars – Deccan Herald
WOH G64: Dramatic shift seen in one of universe’s biggest stars Deccan HeraldAstronomers just watched a star 1,540 times…
The dramatic transition of the extreme red supergiant WOH G64 to a yellow hypergiant
Meynet, G. & Maeder, A. Stellar evolution with rotation. X. Wolf–Rayet star populations at solar metallicity. Astron. Astrophys.…
New images reveal an early-stage stellar eruption (nova) in stunning detail
A classical nova may look simple at first. A faint star brightens, sometimes enough for you to spot…