NASA/Goddard/University of Arizona

A NASA spacecraft operated by the University of Arizona has discovered water locked up in clay minerals on an asteroid. KNAU’s Melissa Sevigny reports, some scientists believe asteroids may have delivered water and organic molecules to Earth in its early history, sparking the origin of life.

NASA Goddard Space Flight Center

A NASA mission to an asteroid arrives at its destination today. OSIRIS REx is led by the University of Arizona and it’s the first U.S. spacecraft to visit an asteroid with plans to bring a sample of it back home. Scientists say the mission will tell us about the origins of the solar system and how to protect Earth from asteroid impacts. KNAU’s Melissa Sevigny spoke with deputy principal investigator Heather Enos.

Roberto Molar Candanosa and Scott Sheppard, courtesy of Carnegie Instituion for Science

A Flagstaff astronomer turned up a rare object at the edge of the solar system that strengthens the case for an undiscovered massive planet. KNAU’s Melissa Sevigny reports.


An Arizona-led spacecraft mission is headed toward a carbon-rich asteroid called Bennu, and today it’s close enough to take the first photograph of its destination. KNAU’s Melissa Sevigny reports.

NASA/Bill Ingalls

The Perseid meteor shower peaks this weekend, coinciding with the new moon. KNAU’s Melissa Sevigny reports on how to see it.