When NASA’s Galileo spacecraft swooped past Jupiter’s moon Europa a week ago, it picked up powerful new evidence that a liquid ocean lies beneath Europa’s icy crust. As the spacecraft flew 218 miles (351 kilometers) above the icy moon on January 3, its magnetometer instrument studied changes in the direction of Europa’s magnetic field. Galileo’s magnetometer observed directional changes consistent with the type that would occur if Europa contained a shell of electrically conducting material, such as a salty, liquid ocean.
The Solar System Simulator is a fascinating web app to create a view of a planet or satellite at various dates and times.
That’s it for today. The update schedule for this site is waaaay off kilter, but hey – it beats not working.
Chop wood, carry water, do weblog.