Saturn's moons Titan and Enceladus are already known to hide oceans beneath their icy crusts. Researchers think there's an ocean deep in Saturn’s moon Dione as well.
Water plumes erupting on Jupiter's moon Europa might make it easier to investigate whether life exists in the warm ocean believed to be deep beneath its icy surface.
New Hubble image shows the demise of a sunlike star. Our own sun will also burn out and shroud itself with stellar debris, but not for another 5 billion years.
“Sea ice really is their platform for life. They are capable of existing on land for part of the year, but the sea ice is where they obtain their main prey.”
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.