NASA Planetary Scientist Noah Petro dishes on what it took plan the impressive touch-and-go return mission, why much of the ...

The OSIRIS-REx spacecraft's name has been changed to OSIRIS-APEX for its new mission to asteroid Apophis. See its journey to ...

Apophis will make a rare close flyby of Earth in 2029 as scientists study its effects and analyse new findings on ...

P. Jenniskens, SETI Institute and NASA Ames Research Center; and M. Breukers and C. Johannink, Cameras for Allsky Meteor Surveillance (CAMS), BeNeLux, report that the chi Cygnids meteor shower (IAU ...

The Galileo Circle is a society of individuals and companies who support the UA College of Science through annual and lifetime charitable gifts. Approximately 300 members strong, the Galileo Circle ...