Violent and destructive, active volcanoes ought to be feared and avoided. Yet, these geological cauldrons expose the pulse of many planets and moons, offering clues to how these bodies evolved from chemical soups to the complex ...
Earth Sciences
Nov 14, 2018
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16
An active region rotated into view and sputtered with numerous small flares and towering magnetic field lines that stretched out many times the diameter of Earth (May 23-25, 2018).
Space Exploration
May 30, 2018
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12
From March 20-23, 2018, NASA's Solar Dynamics Observatory captured three sequences of our sun in three different extreme ultraviolet wavelengths. The resulting images illustrate how different features that appear in one sequence ...
Space Exploration
Apr 11, 2018
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69
NASA's Solar Dynamics Observatory came across an oddity that the spacecraft has rarely observed before: a dark filament encircling an active region (Oct. 29-31, 2017). Solar filaments are clouds of charged particles that ...
Space Exploration
Nov 9, 2017
3
167
We recently bade farewell to the Cassini spacecraft, which after 13 years of faithfully orbiting Saturn and its moons was directed to plunge into the giant planet's atmosphere. The reason for the "grand finale" was to guard ...
Space Exploration
Nov 7, 2017
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263
The sun's recent activity has caught the interest of scientists and space weather forecasters worldwide, highlighting the need to keep a watchful eye on our star and its awesome power.
Space Exploration
Sep 20, 2017
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3
The sun emitted two mid-level solar flares on Sept. 7, 2017. The first peaked at 6:15 a.m. EDT. The second, larger flare, peaked at 10:36 a.m. EDT. These are the fourth and fifth sizable flares from the same active region ...
Space Exploration
Sep 7, 2017
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28
An active region on the sun—an area of intense and complex magnetic fields—has rotated into view on the sun and seems to be growing rather quickly in this video captured by NASA's Solar Dynamics Observatory between July ...
Space Exploration
Jul 12, 2017
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59
The darkest form of ultraviolet light, known as UV-C, is unique because of its reputation as a killer – of harmful organisms.
Nanophysics
Mar 2, 2017
1
949
The northern lights are nature's very own magnificent light show. They are the mesmerising end result of electrically charged particles from the sun colliding with the Earth's upper atmosphere. Though more frequently witnessed ...
Space Exploration
Feb 6, 2017
0
16
