ScienceDaily: Astronomy News |
- Entrepreneur giving space shuttle truss new uses
- First X-class solar flares of 2013
- Impacts of strong solar flares
| Entrepreneur giving space shuttle truss new uses Posted: 14 May 2013 11:11 AM PDT A truss design devised to help workers process space shuttles continues to find new uses as a space shuttle engineer-turned-entrepreneur adapts it to everything from a solar-powered electric generator to a mobile cellphone tower. |
| First X-class solar flares of 2013 Posted: 14 May 2013 05:37 AM PDT On May 13, 2013, the sun emitted an X2.8-class flare, peaking at 12:05 p.m. EDT. This is the the strongest X-class flare of 2013 so far, surpassing in strength the X1.7-class flare that occurred 14 hours earlier. It is the 16th X-class flare of the current solar cycle and the third-largest flare of that cycle. The second-strongest was an X5.4 event on March 7, 2012. The strongest was an X6.9 on Aug. 9, 2011. |
| Impacts of strong solar flares Posted: 14 May 2013 05:35 AM PDT Given a legitimate need to protect Earth from the most intense forms of space weather -- great bursts of electromagnetic energy and particles that can sometimes stream from the sun -- some people worry that a gigantic "killer solar flare" could hurl enough energy to destroy Earth, but this is not actually possible. |
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