Extraterrestrial LifeJuly 30, 2023
Congressional UFO Hearing Shows Need for More Transparency
All who testified before a congressional subcommittee claimed that UFOs pose a threat to national security. So why haven’t the reports been made public?
Stories by Chris Impey
Chris Impey is an associate dean and a University Distinguished Professor at the University of Arizona. He does research on supermassive black holes and science literacy, and teaches two massive open online classes, or MOOCs.
Space & PhysicsJuly 5, 2019
Pluto Redux
The faraway world’s demotion more than a decade ago opened a celestial can of worms
The SciencesMay 28, 2019
Tibetan Monks Meet Science near the Roof of the World
Astronomical and cosmological questions get an airing in India’s Sikkim province in a program started 20 years ago by the Dalai Lama
Space & PhysicsJuly 17, 2015
China Makes Its Move to the Moon [Excerpt]
China’s current rank of eighth in the space race is misleading. The nation’s engineers are drawing up plans for a moon-capable rocket more powerful than the U.S.’s Saturn 5