Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky this week.

"We can chart a course for Mars in line with the president's vision to return to the moon before the Chinese can get there ...

Flagstaff Business News Flagstaff Celebrates International Dark Sky Week with Stargazing, Music, Commemorative Brew ...

Unlike conventional chemical rockets, Sunbird relies on nuclear fusion – a process that replicates the energy production at the core of stars – to propel spacecraft.