Atmospheric surprise from the surface of a comet

Image Caption: This composite is a mosaic comprising four individual NAVCAM images taken from 19 miles (31 kilometers) from the center of comet 67P/Churyumov-Gerasimenko on Nov. 20, 2014. Credit: ESA/Rosetta/NAVCAM (CC BY-SA 3.0 IGO)
Image Caption: This composite is a mosaic comprising four individual NAVCAM images taken from 19 miles (31 kilometers) from the center of comet 67P/Churyumov-Gerasimenko on Nov. 20, 2014. Credit: ESA/Rosetta/NAVCAM (CC BY-SA 3.0 IGO)

In my latest article for STEAMRegister.com, we explore a surprising discovery from the surface of a comet.

What did this Rosetta instrument find out about a comet’s atmosphere? According to NASA, their Alice instrument on board the Rosetta spacecraft found that electrons close to the surface of comet 67P/Churyumov-Gerasimenko are to blame for the rapid breakup of water and carbon dioxide molecules spewing from the comet’s surface. It was previously believed that this breakup was due to photons from the sun.

Click here to find out more – Atmospheric surprise from the surface of a comet.

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