international space station Why does long-term zero-g hurt astronauts' eyes? Mystery solved Andrea James
planets Astronomers identify most likely habitable Earthlike planet yet that no-one reading this will ever live on Rob Beschizza
religion NASA enlisted a priest and other theologians to consider religious reactions to extraterrestrials David Pescovitz
Space NASA says we need a new approach for announcing that extraterrestrials are real David Pescovitz