What a spectacle a big aurora is, its shimmering curtains and colorful rays of light illuminating a dark sky. Many people refer to aurora as the northern lights (the aurora borealis), but there are southern lights too (the ...
Planetary Sciences
Jan 21, 2022
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109
(PhysOrg.com) -- The center of our Milky Way galaxy is about 27,000 light-years away in the direction of the constellation of Sagittarius. At the very center of the galaxy lies a black hole whose mass is about four million ...
Astronomy
Aug 15, 2011
19
0
If we could travel far beyond our galaxy, and look back upon the Milky Way, it would be a glorious sight. Luminous spirals stretching from a central core, with dust and nebulae scattered along the spiral edges. When you think ...
Astronomy
Jan 2, 2024
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82
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 sun is increasing its intensity on schedule, continuing its approach to solar maximum. In just over a 24-hour period on May 5 and May 6, 2024, the sun released three X-class solar flares measuring at X1.3, X1.2, and X4.5. ...
Astronomy
May 8, 2024
0
102
Astronomers have performed spectroscopic observations of a newly detected white dwarf star known as GD 424. Results of the observational campaign provide more insights into the atmosphere of this object. The study was presented ...
(PhysOrg.com) -- Studies of one of the galaxy's most active black-hole binaries reveal a dramatic change that will help scientists better understand how these systems expel fast-moving particle jets.
Astronomy
Dec 10, 2009
2
0
Using ESO's Very Large Telescope (VLT), an international team of astronomers has probed the inner dusty ring of a young star known as CI Tauri (or CI Tau for short). Results of the study, published May 14 on the arXiv pre-print ...
Long-term power cuts, destruction of electronic devices and increased cancer risk for aeroplane passengers are all potential effects of the Earth being hit by a powerful solar eruption.
Space Exploration
Jun 23, 2017
6
490
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 ...
