(Phys.org) —The first observations of the complete magnetic cycle of a star other than the Sun are proving a puzzle to astronomers. Tau Boötis, known as Tau Boo (τ Boo), is a yellowish star that is a little brighter than ...
Astronomy
Jul 4, 2013
3
0
An international team of scientists, led by astrophysicists from the University of Bath in the UK, has measured the magnetic field in a far-off Gamma-Ray Burst, confirming for the first time a decades-long theoretical prediction—that ...
Astronomy
Jun 16, 2021
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675
This Solar Dynamics Observatory image of the Sun taken on January 10 in extreme ultraviolet light captures a dark coronal hole just about at sun center.
Space Exploration
Jan 12, 2011
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2
(PhysOrg.com) -- In two separate studies, Princeton-led teams of scientists have found a new type of “light-like” electron and visualized for the first time another type that doesn’t bounce back when material imperfections ...
General Physics
Aug 10, 2009
2
2
Researchers have found that rocky exoplanets which formed early in the life of the galaxy seem to have had a greater chance of developing a magnetic field and plate tectonics than planets which formed later. As both these ...
Astrobiology
Jun 22, 2020
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41
(PhysOrg.com) -- The center of just about every galaxy is thought to host a black hole, some with masses of thousands of millions of Suns and consequently strong gravitational pulls that disrupt material around them. They ...
Astronomy
Feb 3, 2012
1
0
Illinois researchers have demonstrated that sound waves can be used to produce ultraminiature optical diodes that are tiny enough to fit onto a computer chip. These devices, called optical isolators, may help solve major ...
Optics & Photonics
Jan 22, 2018
0
210
Professor Emeritus Unto K. Laine of Aalto University has made recordings of auroral sounds, showing that the phenomenon is much more common than previously believed and occurs even in the absence of visible northern lights. ...
Planetary Sciences
May 16, 2022
1
55
(Phys.org) -- In the early days of chemistry, finding out what happened when two or more chemicals were mixed together led to the development of all manner of new materials and to deriving useful events, such as the production ...
Magnetic fields are common throughout the universe but incredibly challenging to study. They don't directly emit or reflect light, and light from all along the electromagnetic spectrum remains the primary purveyor of astrophysical ...
Astronomy
Jul 14, 2023
3
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