NASA has only flown astronauts aboard a rocket's first flight once, when John Young and Bob Crippen took space shuttle Columbia on the boldest test flight in history. What are the risks of repeating the feat for SLS?
Every year, teachers and educators gather by the thousands at the National Science Teachers Association (NSTA) Conference. We at The Planetary Society will be there again this year to share our love of space science and exploration with the people who are shaping the future—people like you.
For nearly two years, Opportunity's world has been tilted 10–25 degrees as it drove down to the lower slopes of the wall of Endeavour Crater. Toward the end of last week, Opportunity pulled itself up and over the lip of the crater.