On 6 July 2011, a comet was caught doing something never seen before: die a... read more
Posts Tagged: dean pesnell
To keep an eye on the sun, Nasa has launched the Solar Dynamics Observatory (SDO)... read more
Last week, on 11 February, the Solar Dynamics Observatory (SDO) lifted off from... read more
The sunspot cycle is behaving a little like the stock market. Just when you think... read more