A full-disk multiwavelength extreme ultraviolet image of the sun taken by SDO on March 30, 2010. False colors trace different gas temperatures. Reds are relatively cool (about 60,000 Kelvin, or 107,540 F); blues and greens are hotter (greater than 1 million Kelvin, or 1,799,540 F). Credit: NASA/Goddard/SDO AIA Team.
The Sun as you've never seen it: Nasa reveals stunning footage from new satellite.
Forget Iceland's volcano. If you want to see a really big eruption, you need to head to the Sun.
Forget Iceland's volcano. If you want to see a really big eruption, you need to head to the Sun.
This astonishing image - captured by a new Nasa space telescope - shows a ferocious solar flare looping out the Sun with the power of 100 hydrogen bombs. The ring of fire, heated to tens of millions of degrees, stretches out tens of thousands of miles - and is so big it could contain more than 100 Earths...
Read this article by Claire Bates and David Derbyshire: dailymail.co.uk
NASA's recently launched Solar Dynamics Observatory, or SDO, is returning early images that confirm an unprecedented new capability for scientists to better understand our sun’s dynamic processes. These solar activities affect everything on Earth.
Some of the images from the spacecraft show never-before-seen detail of material streaming outward and away from sunspots. Others show extreme close-ups of activity on the sun’s surface. The spacecraft also has made the first high-resolution measurements of solar flares in a broad range of extreme ultraviolet wavelengths.
"These initial images show a dynamic sun that I had never seen in more than 40 years of solar research,” said Richard Fisher, director of the Heliophysics Division at NASA Headquarters in Washington. "SDO will change our understanding of the sun and its processes, which affect our lives and society. This mission will have a huge impact on science, similar to the impact of the Hubble Space Telescope on modern astrophysics.”
The Helioseismic and Magnetic Imager
The HMI will measure the waves rippling across the surface of the Sun and the strength and direction of the surface magnetic field. Wave data is used to create ultrasounds of the Sun, looking under the surface of the Sun to measure the winds that create the magnetic field. The magnetic field data is used to understand how the field erupts through the surface and becomes solar flares and coronal mass ejections, the storms of space weather.
Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.
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