(Image from the Galileo probe. Note the ice fractures. Europa looks like a compacted solid ball of ice, if there is an ocean underneath, it would be shielded and protected by the thickness of the ice.)
“Astronomers will present results from a unique Europa observing campaign that resulted in surprising evidence of activity that may be related to the presence of a subsurface ocean on Europa,” NASA wrote in a press release Tuesday announcing the media event.”
NASA once again over-hypes a discovery. Delay the news conference, ensure speculative overthinking by the poor populous. With every second person on the Internet assuming they have discovered life (albeit primitive) on Europa. A branding and promotion technique to create hype. That is fine, part of selling the story. But it is shame that a scientific organization has too use a Hollywood stye tantalization to draw in an interest.
The news: NASA via Hubble have discovered water plumes and/or jets emitting from the ice moon. Was also discovered in 2012 by the Hubble telescope.