Tuesday, April 10, 2018

Apr 10 - Giant Sun Tornadoes

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Giant sun tornadoes aren't spinning

Two-dimensional images make them look as if they're spinning, but new research says no.

Earth's magnetosphere envelops and protects us

A giant bubble of magnetism protects us from the sun's fury. Take 3 minutes to learn about it, in this new NASA ScienceCasts video.

Tonight … How Leo the Lion lost his tail

And how we gained a new constellation. One of the most famous legends of skylore, here.

The EarthSky Store

Help us keep presenting your world, and cosmos, to you. Plus get some cool astronomy swag while doing so!

Aurora dolphin

Seeing animals shapes in clouds - or the northern lights - is what's called pareidolia. In late March, on his last morning in Livengood, Alaska, Photography of the Eternal Nomad caught this aurora dolphin.

Giant sun tornadoes aren't spinning

Composite image of a solar prominence, observed by NASA's Solar Dynamics Observatory on August 31, 2012. It does look like it's spinning, doesn't it? But it's not.

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