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Sakurajima Volcano with Lightning

di | 13 Maggio 2018

Why does a volcanic eruption sometimes create lightning? Pictured above, the Sakurajima volcano in southern Japan was caught erupting in 2013 January. Magma bubbles so hot they glowed shot away as liquid rock burst through the Earth’s surface from below. The featured image is particularly notable, however, for the lightning bolts caught near the volcano’s… Leggi tutto »

Mars Helicopter to Fly on NASA’s Next Red Planet Rover Mission

di | 11 Maggio 2018

NASA is sending a helicopter to Mars. The Mars Helicopter, a small, autonomous rotorcraft, will travel with the agency’s Mars 2020 rover mission, currently scheduled to launch in July 2020, to demonstrate the viability and potential of heavier-than-air vehicles on the Red Planet. from NASA https://ift.tt/2rCmLxH via IFTTT

NASA Television to Air Coverage of Earth-Observing Satellite Duo Launch

di | 11 Maggio 2018

Media are invited to cover the prelaunch briefing and launch of the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO), NASA’s latest Earth-observing satellite mission. The briefing on Thursday, May 17, and launch on Saturday, May 19, will air on NASA Television and the agency’s website. from NASA https://ift.tt/2rDgUbu via IFTTT

NGC 1360: The Robin s Egg Nebula

di | 11 Maggio 2018

This pretty cosmic cloud lies some 1,500 light-years away, it shape and color reminiscent of a blue robin’s egg. It spans about 3 light-years, nested securely within the boundaries of the southern constellation Fornax. Recognized as a planetary nebula it doesn’t represent a beginning though, but instead corresponds to a brief and final phase in… Leggi tutto »

Galaxies in the River

di | 10 Maggio 2018

Large galaxies grow by eating small ones. Even our own galaxy practices galactic cannibalism, absorbing small galaxies that get too close and are captured by the Milky Way’s gravity. In fact, the practice is common in the universe and illustrated by this striking pair of interacting galaxies from the banks of the southern constellation Eridanus,… Leggi tutto »