Astronomers see white dwarf 'switch on and off' for first time
Astronomers have used a planet-hunting satellite to see a white dwarf abruptly switching on and off for the first time.
Astronomers have used a planet-hunting satellite to see a white dwarf abruptly switching on and off for the first time.
Astronomy
Oct 18, 2021
1
1405
On Aug. 26, 2020, NASA's Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the present age of the universe. Lasting only about a second, it turned ...
Astronomy
Jul 26, 2021
75
2415
Astronomers have made the rare sighting of two stars spiraling to their doom by spotting the tell-tale signs of a teardrop-shaped star.
Astronomy
Jul 12, 2021
1
6383
When Betelgeuse, a bright orange star in the constellation of Orion, became visibly darker in late 2019 and early 2020, the astronomy community was puzzled. A team of astronomers have now published new images of the star's ...
Astronomy
Jun 16, 2021
9
2132
Astronomers have spotted a giant 'blinking' star towards the center of the Milky Way, more than 25,000 light years away.
Astronomy
Jun 11, 2021
20
5622
The first detailed cross-section of a galaxy broadly similar to the Milky Way, published today, reveals that our galaxy evolved gradually, instead of being the result of a violent mash-up. The finding throws the origin story ...
Astronomy
May 24, 2021
11
2341
Using the Harlan J. Smith Telescope, astronomers have discovered that the star HD 47127 has a substellar companion. The newly identified object, designated HD 47127 B, appears to be a brown dwarf or a brown dwarf binary. ...
A team of astronomers from the Grenoble Alpes University in France and elsewhere, reports the detection of a new sub-Neptune exoplanet orbiting an M dwarf star. The newly found alien world, designated TOI-269 b, is nearly ...
Using the Magellan Inamori Kyocera Echelle (MIKE) spectrograph, astronomers have conducted a chemical abundance study of a galactic globular cluster known as NGC 1261. Results of the research, published April 22 on arXiv.org, ...
New observations with the European Southern Observatory's Very Large Telescope (ESO's VLT) indicate that the rogue comet 2I/Borisov, which is only the second and most recently detected interstellar visitor to our Solar System, ...
Astronomy
Mar 30, 2021
1
4819