The sun has gone quiet. Almost too quiet. A few weeks ago it was teeming with sunspots, as you would expect since we are supposed to be in the middle of solar maximum-the time in the sun's 11-year cycle when it is the most ...
Space Exploration
Jul 21, 2014
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(Phys.org) —Solar jets are ejections from the surface of the Sun, where 1-10 tonnes of hot material are expelled at speeds of up to 1000 kilometres per second. Using space based observatories like Hinode and STEREO, solar ...
Space Exploration
Jun 23, 2014
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A coronal mass ejection, or CME, surged off the side of the sun on May 9, 2014, and NASA's newest solar observatory caught it in extraordinary detail. This was the first CME observed by the Interface Region Imaging Spectrograph, ...
Space Exploration
May 31, 2014
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A NASA scientist is launching a one-to-two-year pilot project this summer that takes advantage of U.S. high-voltage power transmission lines to measure a phenomenon that has caused widespread power outages in the past.
Space Exploration
Apr 23, 2014
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(Phys.org) —Researchers at UCL have studied the behaviour of the Sun's coronal mass ejections, explaining for the first time the details of how these huge eruptions behave as they fall back onto the Sun's surface. In the ...
Astronomy
Feb 20, 2014
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As Comet ISON heads toward its closest approach to the sun—known as perihelion—on Nov. 28, 2013, scientists have been watching through many observatories to see if the comet has already broken up under the intense heat ...
Space Exploration
Nov 27, 2013
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Daniel Wolf Savin and Michael Hahn have been fascinated by the universe since they were boys. For Savin, a senior research scientist in the Columbia Astrophysics Laboratory, discovering Albert Einstein at age 12 spurred the ...
Astronomy
Nov 18, 2013
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A sobering study published this month in Space Weather warns why we need to get better prepared for disruptive space weather events – particularly coronal mass ejections.
Space Exploration
Oct 16, 2013
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(Phys.org) —A University of Alabama in Huntsville graduate student and a recent UAH doctoral graduate are exploring surprising data from Voyager 1's crossing of the heliopause into the interstellar medium of our galaxy.
Space Exploration
Sep 25, 2013
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The European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, captured this image of a gigantic coronal hole hovering over the sun's north pole on July 18, 2013, at 9:06 a.m. EDT. Coronal holes are dark, low ...
Space Exploration
Jul 20, 2013
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