Earendel is a B-type giant star, a luminous blue variable star, or even a binary system with an extremely hot primary member, according to new observations...
Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) and the SPIRou spectropolarimeter on the 3.6-m Canada-France-Hawaii telescope have...
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have for the first time detected the millimeter afterglow of a short-duration...
PSR J0952-0607, a so-called millisecond pulsar, has shredded and consumed nearly the entire mass of its stellar companion and, in the process, grown into...
Zeta Ophiuchi is a very massive, hot, bright blue star that once had a companion that exploded as a supernova.
Zeta Ophiuchi was once in close orbit with...
TIC 470710327, a massive, compact hierarchical triple-star system recently identified by NASA’s Transiting Exoplanet Survey Satellite (TESS), was originally...
The newly-detected black hole is a member of the binary system VFTS 243, which is located in the famous Tarantula Nebula in the Large Magellanic Cloud.
This...
Using data from the NOIRLab Source Catalog (NSC) DR2, citizen scientist Frank Kiwy has discovered 34 new M-, L-, or T-type dwarfs comoving with low-mass...
There are different types of supernova explosions. Type Ia supernovae, also known as thermonuclear supernovae, occur in binary star systems. To trigger...
Gaia’s data release 3 (DR3) contains new and improved details for almost 2 billion stars in our Milky Way Galaxy as well as for a subset of solar system...
In some supernova cases, astronomers find no trace of the former star’s outermost layer of hydrogen. What happened to the hydrogen? Suspicions that companion...
As a stellar-mass black hole pulls in gas and dust from an orbiting star, it can give off spectacular bursts of X-rays that bounce and echo off the inspiraling...
Astronomers from the Australian National University, the University of New South Wales, the University of Canterbury and the University of Tokyo have found...
A micronova is a thermonuclear blast that happens on the surface of certain stars and lasts for just a few hours making them extremely difficult to observe.
This...
Mass loss in red giant stars is one of the major uncertainties in the astrophysics.
Red giant stars. Image credit: NASA’s Goddard Space Flight Center...
Astronomers using the MAGIC (Major Atmospheric Gamma Imaging Cherenkov) telescopes have detected gamma rays from the 2021 outburst of RS Ophiuchi, a recurrent...
HR 6819, a highly intriguing object that was recently proposed as a multiple system containing a stellar-mass black hole, is in fact a binary star system...
The binary neutron-star merger GW170817 was discovered in August 2017. Many telescopes saw different kinds of light after the discovery, but only NASA’s...
Kepler-16b, a rare exoplanet that orbits around two stars, has been detected using the SOPHIE spectrograph at the 1.93-m telescope of the Observatoire...
