KEY INGREDIENTS Phosphorus and glycine, both essential to life, have been found at comet 67P, seen in this March 29 picture from the Rosetta spacecraft.
Rosetta/ESA, MPS, UPD, LAM, IAA, SSO, INTA, UPM, DASP, IDA
TARGET: EUROPA Slamming a spent fuel tank into the surface of Jupiter’s icy moon Europa could vibrate the surface so much that a spacecraft flying by (shown in artist’s illustration) could see the tremors. Scientists might be able to analyze the tremors to gauge the thickness of the ice.
MISSION TO MARS By the 2030s, NASA and the aerospace industry want to send a crew to explore Mars, seen in this simulated image based on data from the Mars Global Surveyor orbiter.