Nasa's Solar Dynamics Observatory is a telescope about the size of a truck which is in orbit around the Earth, 22,000 miles above the planet. Pointed directly at the Sun, its 10 year mission is to observe our star, and help us learn about its weather, its composition and its life cycle. Above: SDO's view of a Lunar transit. And also to take really, really beautiful pictures....
(2 months and 11 days ago)
The Hinode telescope captures some amazing views of last week's annular solar eclipse. Last week's annular solar eclipse was only visible from cruises in the Pacific Ocean, but the international fleet of solar-observing spacecraft had a great view. The Hinode telescope, which orbits Earth and observes the sun in X-ray, optical, and extreme ultraviolet wavelengths, captured...
(8 days ago)
A Nasa spacecraft has captured an incredible image of the Earth from more than 100 million miles away. Solar Terrestrial Relations Observatory B (Stereo-B) is currently located between the Sun and the Earth, with an excellent view of the Comet Pan-Starrs which lit up northern skies last month. On 13 March it captured a photo of the comet and the Earth with its Heliospheric...
(1 month and 18 days ago)
It's no exaggeration to say the sun sustains life here on Earth -- it provides not only light and warmth but also the energy that helps keep us supplied with oxygen and food. But what if the sun exploded or suddenly went cold -- or simply blinked out of existence? Don't panic -- the sun isn't really going anywhere. But what if? Video blogger Michael Stevens answers this...
(1 month and 17 days ago)
The largest solar flare of 2013 erupted from the sun yesterday sparking a temporary radio blackout on Earth. The short-lived radio communications blackout on Earth registered as an R2 event (on a scale of R1 to R5). Additionally, the...
(1 month and 8 days ago)
The Sun has expelled a third intense X-Class solar flare in 24 hours - but Nasa says not to worry. It is "not physically capable of destroying Earth". Our sun is currently nearing the period known as 'solar maximum', when activity on its surface rises to an 11 year peak. This solar cycle has been observed regularly since it was discovered in 1843, and indicates a regular...
(6 days ago)
An incredible video shot from a space craft appears to show the moment that a massive ejection of particles from the sun flew directly into the path of a comet - and the Earth. The Solar Terrestrial Relations Observatory shot the clip of super-hot material being blown from the Sun in a coronal mass ejection - a CME. In the clip, the CME appears to fly into the path of the...
(2 months and 4 days ago)
An enormous storm is growing on the surface of the Sun - and could send massive solar flares our way soon. The colossal sun spot is large enough to swallow six Earths. Sun spots usually grow out of shifting magnetic patterns on the star, and can 'pool' together to create very large features or blemishes on the surface. Sun spots are actually cooler than the rest of the Sun,...
(2 months and 30 days ago)
LOS ANGELES - The sun has fired off a massive flare, the strongest solar eruption this year. The powerful flare occurred Sunday and erupted on the side of the sun that was not facing Earth. While the planet was not hit with radiation, space weather forecasters say the solar blast briefly disrupted high-frequency radio signals. Solar outbursts that are directed at Earth can...
(7 days ago)
The best view of Saturn available to Earth dwellers in six years should be on Sunday (April 28), with the planet reaching its opposition point, when Earth lies directly between it and the sun.
(23 days ago)
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