A couple of days ago, September 26, 2016, tens of millions of us tuned in to the gory — and usually devoid of fact — spectacle that is the US Presidential election debate. On the same day, something else rather newsworthy took place; some would say much more important than watching two adults throw puerile nonsense at one another.
NASA has found evidence of water plumes spouting from a subsurface ocean on Europa, Jupiter’s fourth largest moon. The agency used the Hubble Space Telescope to look for signs of plumes as the icy moon transited Jupiter.
This should make for an fascinating encounter when NASA launches a mission in 2020 to examine Europa more closely, especially to investigate whether it could harbor conditions suitable for life.
Image: Trailing hemisphere of Jupiter’s ice-covered satellite, Europa. Europa is about 3,160 kilometers (1,950 miles) in diameter, or about the size of Earth’s moon. Courtesy: NASA/JPL/DLR (Deutsche Forschungsanstalt fuer Luftund Raumfahrt e.V., Berlin, Germany).