During its close flyby of Earth, NASA’s Jupiter-bound Juno spacecraft listened for a communication from amateur radio operators transmitting from locations around the world. This video clip depicts results, the “dits” and the “dahs,” of this high-flying social experiment.
This animation released by NASA shows a series of views from the Cassini spacecraft of one of the most bizarre features in the solar system; the Hexagon-shape at the north pole of Saturn. I have no idea why there’s a Hexagon there and I still am waiting for someone to give a real strong explanation.
This feature is a stable storm with 320 kilometer per hour swirling winds, yet somehow it doesn’t disrupt the geometric pattern. It’s been there for years now, perhaps decades.
Aside from that, there’s a very cool pattern of swirling winds and shifting clouds visible in the image sequence.
This image covers about 10 hours. It was able to be taken this year because of changing seasons on Saturn - it’s now summer in the northern hemisphere, so this part of Saturn is now illuminated by the sun.
In the last post we shared a photo of a giant lava bubble exploding on Sicily’s Mount Etna (see http://tinyurl.com/lbptsw2). Here, just after the explosion, the entire cone is glowing with the littered bombs of glowing basaltic lava.
Etna’s ongoing activity is providing us with some beautiful sights of molten rock coming out from the depths of the Earth, including this amazing photo of a runny basaltic lava bubble exploding. The explosion is hundreds of metres high, being powerful enough to generate a spherical shockwave outlined in lava, and showering the area with glowing bomblets of lava. The volcano has been through a series of powerful paroxysms the last few days. which show no signs of abating.
Eruptions are driven by gases exsolving from the magma as it rises and the pressure of the surrounding rocks drops. As it reaches the surface, and effect rather like opening a shaken bottle of champagne occurs. Below we link to a film of the event.