A controversial new system designed to reduce wait times for liver transplants. The difficult search for a liver donor.
The Future Of Space Exploration May Be In Private Hands — And That May Be For The Best
The OSIRIS-REx mission is celebrating an anniversary. Last week marked one year since the spacecraft was launched. Its goal is to study the asteroid Bennu.
Dante Lauretta is principal investigator of the OSIRIS-REx mission. He's also a professor of planetary science and cosmochemistry at the University of Arizona.