It seems the universe has an odd sense of humor. While a crown-encrusted virus has run roughshod over the world, another entirely different corona about 100 million light years from Earth has mysteriously disappeared.
Astronomy
Jul 16, 2020
20
3738
Using the Suzaku satellite, Japanese astronomers have detected a transient X-ray source in a nearby galaxy known as NGC 4945. The newly discovered source, designated Suzaku J1305−4930, appears to be a black hole binary. ...
Using data from space observatories and ground-based telescopes, astronomers have investigated variability of a blazar known as 3C 273. The new study, presented in a paper published July 6 on the arXiv pre-print server, sheds ...
Some of the most massive and distant black holes in the universe emit an enormous amount of extraordinarily energetic radiation called gamma rays. This type of radiation occurs, for example, when mass is converted into energy ...
Astronomy
Jul 2, 2020
63
168
It may well mark a revolution in X-ray astronomy: The eRosita space telescope, which was launched last July, has completed its first complete survey of the sky. Over a million objects are visible on the map it has produced. ...
Astronomy
Jun 24, 2020
0
7
By detecting an X-ray flare from a very young star using NASA's Chandra X-ray Observatory, researchers have reset the timeline for when stars like the sun start blasting high-energy radiation into space, as reported in our ...
Astronomy
Jun 18, 2020
0
233
Brilliantly colored chameleons, butterflies, opals—and now some 3-D-printed materials—reflect color by using nanoscale structures called photonic crystals.
Materials Science
Jun 10, 2020
0
138
Astronomers have caught a black hole hurling hot material into space at close to the speed of light. This flare-up was captured in a new movie from NASA's Chandra X-ray Observatory.
Astronomy
May 29, 2020
1
4270
In biological microscopy and X-ray imaging, many transparent objects or structures are difficult to observe. Due to their low absorption of light, the usual intensity measurements don't work. Instead, the structural information ...
Optics & Photonics
May 19, 2020
0
0
The potential of an X-ray spectroscopy technique to shed light on the mysterious phenomena that occur when a liquid nears a glass-like state has been demonstrated by four RIKEN physicists.
Polymers
May 15, 2020
0
145
