(PhysOrg.com) -- Space weather starts at the sun. It begins with an eruption such as a huge burst of light and radiation called a solar flare or a gigantic cloud of solar material called a coronal mass ejection (CME). But ...
Space Exploration
Mar 9, 2012
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Solar flares are giant explosions on the sun that send energy, light and high speed particles into space. These flares are often associated with solar magnetic storms known as coronal mass ejections (CMEs). The number of ...
Space Exploration
Aug 10, 2011
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The Earth's magnetic field plays a big role in protecting people from hazardous radiation and geomagnetic activity that could affect satellite communication and the operation of power grids. And it moves.
Planetary Sciences
Nov 28, 2023
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When it launches in 2014, NASA's new Magnetospheric Multiscale (MMS) mission will give scientists unprecedented insights into a little-understood physical process at the heart all space weather. This process, known as magnetic ...
Space Exploration
Jan 14, 2012
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In 1995, a new solar observatory was launched. A joint project of ESA and NASA, the Solar and Heliospheric Observatory – SOHO – has been sending home images of our dynamic sun ever since. SOHO was planned to open up a ...
Space Exploration
Jul 31, 2015
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May 2024 has already proven to be a particularly stormy month for our sun. During the first full week of May, a barrage of large solar flares and coronal mass ejections (CMEs) launched clouds of charged particles and magnetic ...
Astronomy
May 16, 2024
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(Phys.org) —Movies of giant loops projecting from the surface of the Sun are giving new insights into the complex mechanisms that drive solar flares and Coronal Mass Ejections (CMEs). These eruptions release vast energy ...
Space Exploration
Jul 2, 2013
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There are currently about fifty known exoplanets with diameters that range from Mars-sized to several times the Earth's and that also reside within their stars' habitable zone – the orbital range within which their surface ...
Astronomy
Oct 23, 2017
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Today, astronomers are releasing the highest-resolution images ever taken of the Sun's corona, or million-degree outer atmosphere, in an extreme-ultraviolet wavelength of light. The 16-megapixel images were captured by NASA's ...
Space Exploration
Jul 20, 2012
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A dark, snaking line across the lower half of the sun in this Feb. 10, 2015 image from NASA's Solar Dynamics Observatory (SDO) shows a filament of solar material hovering above the sun's surface. SDO shows colder material ...
Space Exploration
Feb 12, 2015
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