A group of researchers has identified and characterized for the first time in a complete way a powerful eruption in the atmosphere of the active star HR 9024, marked by an intense flash of X-rays followed by the emission ...
Astronomy
Jun 3, 2019
2
1289
A stellar flare ten times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter.
Astronomy
Apr 17, 2019
13
1437
The sun's magnetic field is ten times stronger than previously believed, new research from Queen's University Belfast and Aberystwyth University has revealed.
Space Exploration
Mar 29, 2019
22
2308
The supermassive black hole (SMBH) at the center of our Milky Way galaxy, Sagittarius A*, is by far the closest such object to us, only about 25 thousand light-years away. Although not nearly as active or luminous as other ...
Astronomy
Feb 25, 2019
106
770
Solar flares shouldn't produce X-rays, but they do. Why? The one-size-fits-all approach to electron collisions misses a lucky few that lead to an intense X-ray burst. Scientists thought there were too many electron-scattering ...
Plasma Physics
Feb 19, 2019
0
30
The Hawaii-based James Clerk Maxwell Telescope (JCMT) has discovered a stellar flare 10 billion times more powerful than the Sun's solar flares, a history-making discovery that could unlock decades-old questions about the ...
Astronomy
Feb 12, 2019
6
531
A team of scientists has, for the first time, used a single, cohesive computer model to simulate the entire life cycle of a solar flare: from the buildup of energy thousands of kilometers below the solar surface, to the emergence ...
Astronomy
Jan 15, 2019
0
173
As on Earth, so in space. A four-satellite mission that is studying magnetic reconnection—the breaking apart and explosive reconnection of the magnetic field lines in plasma that occurs throughout the universe—has found ...
Plasma Physics
Dec 7, 2018
0
189
The word "HAZMAT" describes substances that pose a risk to the environment, or even to life itself. Imagine the term being applied to entire planets, where violent flares from the host star may make worlds uninhabitable by ...
Astronomy
Oct 18, 2018
16
153
The Earth's magnetic field extends from pole to pole and is strongly affected by solar wind from the sun. This "wind" is a stream of charged particles constantly ejected from the sun's surface. Occasional sudden flashes of ...
General Physics
Aug 29, 2018
1
67
