Saturn's moon Enceladus has a subsurface ocean covered by a layer of ice. Some liquid escapes into space through cracks in the ice, which is the source of one of Saturn's rings.
-- before spiraling into the planet
Our universe is strange, wonderful and vast, says astronomer Natasha Hurley-Walker. A spaceship can't carry you into its depths (yet) -- but a radio telescope can.
Later today, an Atlas V rocket will blast off to the International Space Station bearing 7,600-odd pounds of food, water and other sundries to the astronauts on board.
The 2017 Caltech Space Challenge will see students design a Moon base for deep space exploration
Nextbigfuture has covered Woodwards Mach effect propulsion in dozens of articles.