NASA's current human spaceflight goal is Mars, but the Trump administration could change that to the Moon. Is that a good idea? Here's an in-depth look at the differences in science gain, the arguments for and against a potential commercial market, and whether or not the technological and operational challenges required to reach the Moon apply to Mars.
Russia's workhorse Proton rocket may be grounded until June or July, dealing another blow to the country's launch infrastructure, which has been plagued by brain drain, mismanagement, poor quality control and corruption.
Four years ago, I announced that I was writing a book about Curiosity, describing the mission from its inception through its nominal mission. I am still not done, so am taking a three-month break from other work -- including this blog -- in order to focus and finish. I'm seeking scientists and engineers to serve as guest bloggers.
This Friday, Charles Bolden resigns as NASA administrator after a stint of 2,744 days. Robert Lightfoot, the agency's highest-ranking civil servant, will take over as acting admin. How long will Lightfoot serve? If history serves as a guide, it could be a while.