Nearly 5,000 kilometers above the sun's surface lies a century-old question for solar physicists—how are temperatures in the star's upper atmosphere (corona) hundreds of times hotter than temperatures at the sun's visible ...
Astronomy
Jun 14, 2023
1
95
For the first time, NASA's Neutron star Interior Composition Explorer (NICER) has observed the merging of multimillion-degree X-ray spots on the surface of a magnetar, a supermagnetized stellar core no larger than a city.
Astronomy
Mar 8, 2022
5
624
Astronomers spying on a stellar system located dozens of lightyears from Earth have, for the first time, observed a troubling fireworks show: A star, named EK Draconis, ejected a massive burst of energy and charged particles ...
Astronomy
Dec 9, 2021
5
5314
Could solar storms knock out the global internet? Yes, but we don't know when or how it could happen. Mathematician Dr. Geoffrey Vasil has proposed a new understanding of the Sun's convection zone to help.
Astronomy
Aug 5, 2021
35
1055
A team of researchers led by Costanza Argiroffi, an astronomer at the University of Palermo in Italy, has found evidence of a coronal mass ejection (CME) from a star that was not our sun—the first ever observed. They reported ...
(Phys.org)—A team of researchers from the U.S., Japan and Switzerland has found possible evidence of a source of energy that could be responsible for heating the sun's corona. In their paper published in the journal Nature ...
(Phys.org)—Russian scientists have presented the first results of solar observations made with the new radioheliograph of the Siberian Solar Radio Telescope (SSRT). The Siberian Radioheliograph (SRH), has recently commenced ...
Large and small scale solar eruptions might all be triggered by a single process, according to new research that leads to better understanding of the Sun's activity.
Space Exploration
Apr 26, 2017
12
251
For scientists studying the impacts of space weather, one of the central mysteries of solar flares - the colossal release of magnetic energy in the Sun's atmosphere that erupts with the force of millions of hydrogen bombs ...
Space Exploration
Dec 3, 2015
40
594
The most Earth-like planet could have been made uninhabitable by vast quantities of radiation, new research led by the University of Warwick research has found.
Space Exploration
Nov 17, 2015
16
1955
