NASA Satellite to Map Earth’s Ice With Space Laser

A $1 billion NASA mission that will use a laser to track changing ice levels on Earth soared into space early Saturday, launching into a predawn California sky on a mission that also marked the final flight of a record-setting rocket.

NASA’s Ice, C…

A $1 billion NASA mission that will use a laser to track changing ice levels on Earth soared into space early Saturday, launching into a predawn California sky on a mission that also marked the final flight of a record-setting rocket. NASA’s Ice, Cloud and Land Elevation Satellite-2, or ICESat-...