The aftermaths of supernovae always produce X-rays, but if the supernova’s blast wave strikes dense surrounding gas, it can produce a particularly large...
The newly-discovered dormant black hole, named Gaia BH2, is orbited by a red giant star, and has a mass of 8.9 solar masses.
The location of Gaia BH2 and...
To facilitate studies of exo-Venus candidates, astronomers from the University of California, Riverside, the University of California, Santa Cruz, Brown...
In unveiling the nature of the first stars, the main astronomical clue is the elemental compositions of the second generation of stars, observed as extremely...
The new animation shows the gamma-ray sky’s frenzied activity during a year of observations by the Large Area Telescope (LAT) aboard NASA’s Fermi Gamma-ray...
X3a is approximately 10 times larger than the Sun, 15 times as massive, and is only several tens of thousands of years old.
Multiwavelength detection of...
An elongated dust and gas feature named X7 has a mass of about 50 Earth masses and is on an orbital path around Sagittarius A*, the supermassive black...
The second data release of the Dark Energy Camera Plane Survey (DECaPS2), which took two years to complete and produced more than 10 terabytes of data...
Using the ASKAP and Parkes radio telescopes in Australia, astronomers have observed a large section of the Galactic plane of the Milky Way.
A part of the...
Astronomers from the University of California, Santa Cruz and elsewhere have discovered 208 new RR Lyrae variable stars in the halo of our Milky Way Galaxy;...
Antimatter particles such as positrons and antiprotons abound in the cosmos. Much less common are light antinuclei, composed of antiprotons and antineutrons,...
The Hubble team has released a beautiful image of Pismis 26, an ancient globular cluster in the constellation of Scorpius.
This Hubble image shows the...
Astronomers using ESO’s 4.1-m Visible and Infrared Survey Telescope for Astronomy have captured a new view of two bright nebulae: NGC 3603 and NGC 3576.
This...
WD J2147-4035, an 11-billion-year-old white dwarf located 91 light-years away in the constellation of Grus, is accreting debris from orbiting planetesimals,...
The newly-discovered black hole resides in the binary system Gaia DR3 4373465352415301632 with a main-sequence star that is slightly smaller than the Sun....
Using 18 all-sky maps produced by NASA’s Near-Earth Object Wide Field Infrared Survey Explorer (NEOWISE), astronomers have created what is essentially...
Both the first and second interstellar meteors, IM1 and IM2, are outliers in material strength and may have originated in supernova explosions, according...
