The sun is about to get a lot more active, which could have ill effects on Earth. So to prepare, top sun scientists met Tuesday to discuss the best ways to protect Earth’s satellites and other vital systems from the coming solar storms. Solar storms occur when sunspots on our star erupt and spew out flumes of charged particles that can damage power systems. The sun’s activity typically... 

President Obama has chosen former astronaut Charles F. Bolden to head NASA. If confirmed by the Senate, Bolden would become the first African-American NASA administrator. Word of Obama’s choice came Saturday in statements from NASA and the White House. The president also tapped former NASA official Lori Garver, who headed Obama’s space transition team, to become deputy administrator. “These...