Scientists race toward $7.5 million prize to reduce carbon

Apr 12, 2018
The XPRIZE started with 38 teams and is now down to a final 10.
Members of Carbon Upcycling UCLA convert and harden building materials by treating them with carbon dioxide.
Courtesy of UCLA Samueli School of Engineering

How to get to space without NASA

Sep 22, 2016
Julian Guthrie's new book, "How to Make a Spaceship" details the founding of the XPRIZE.
Joel Kowsky/NASA via Getty Images