A Solar Filament Erupts

What is this massive eruption on the Sun? Nothing unusual. It just threw a solar filament, and this one pictured took place in 2012, producing a Coronal Mass Ejection (CME).


NASA explains:

The filament had been held up for days by the Sun's ever changing magnetic field and the timing of the eruption was unexpected. Watched closely by the Sun-orbiting Solar Dynamics Observatory, the resulting explosion shot electrons and ions into the Solar System, some of which arrived at Earth three days later and impacted Earth's magnetosphere, causing visible aurorae. Loops of plasma surrounding an active region can be seen above the erupting filament in the ultraviolet image. Over the past week the number of sunspots visible on the Sun unexpectedly dropped to zero, causing speculation that the Sun has now passed a very unusual solar maximum, the time in the Sun's 11-year cycle when it is most active.

Image credit: NASA

​There are two kinds of failure – but only one is honorable

Malcolm Gladwell teaches "Get over yourself and get to work" for Big Think Edge.

Big Think Edge
  • Learn to recognize failure and know the big difference between panicking and choking.
  • At Big Think Edge, Malcolm Gladwell teaches how to check your inner critic and get clear on what failure is.
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Photo by Alina Grubnyak on Unsplash
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Do human beings have a magnetic sense? Biologists know other animals do. They think it helps creatures including bees, turtles and birds navigate through the world.

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Harvard: Men who can do 40 pushups have a 'significantly' lower risk of heart disease

Turns out pushups are more telling than treadmill tests when it comes to cardiovascular health.

Airman 1st Class Justin Baker completes another push-up during the First Sergeants' push-up a-thon June 28, 2011, Eielson Air Force Base, Alaska. Participants were allowed 10 minutes to do as many push-ups as they could during the fundraiser. Airman Baker, a contract specialist assigned to the 354th Contracting Squadron, completed 278 push-ups. (U.S. Air Force photo/Airman 1st Class Janine Thibault)
Surprising Science
  • Men who can perform 40 pushups in one minute are 96 percent less likely to have cardiovascular disease than those who do less than 10.
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U.S. reacts to New Zealand's gun ban

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(Photo by Spencer Platt/Getty Images)
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  • Gun control supporters are pointing to the ban as an example of swift, decisive action that the U.S. desperately needs.
  • Others note the inherent differences between the two nations, arguing that it is a good thing that it is relatively hard to pass such legislation in such a short timeframe.
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