The women plus NASA's chief scientist came to talk space exploration, women in STEM, and common misconceptions. Oh, and which foods they wished they had in space.
In announcing a new expansion of commercial efforts to launch earthlings into space, Amazon.com founder and CEO Jeff Bezos says the launch pads at Cape Canaveral have been dormant for too long.
Gennady Padalka, who spent several months aboard the International Space Station, has now spent more time in space than any human, clocking more than 2.4 years in space on five missions since 1998.
New images taken by the Dawn spacecraft have "transformed what was so recently a few bright dots into a complex and beautiful, gleaming landscape," a NASA mission director says.
Buzz Aldrin, the second man to walk on the Moon, and the Florida Institute of Technology are working on a plan to colonize Mars. He'd like it to happen by the 70th anniversary of his Moon landing.
Some scientists say we should be doing more to protect the Earth from asteroids. The technical issues are relatively easy, but the economics of asteroid defense are much harder.