nasa

NASA's Goddard Space Flight Center/University of Arizona

A spacecraft guided by Arizona scientists will swing around Earth tomorrow, changing its trajectory to put it on course to study an asteroid next year. KNAU’s Melissa Sevigny reports.


NASA/JPL/Space Science Institute

The Cassini spacecraft mission ends tomorrow after two decades in space. A Flagstaff scientist on the mission team says Cassini transformed our knowledge of Saturn and especially its strange moon Titan. KNAU’s Melissa Sevigny spoke with Randy Kirk of the U.S. Geological Survey from Pasadena, California, where the team has gathered to witness the spacecraft’s final moments.


NPS/Erin Whittaker

Every state in America will witness at least a partial solar eclipse today. In Arizona the celestial show starts at about 9:15 this morning and ends at noon. KNAU’s Melissa Sevigny reports.


Melissa Sevigny

The Navajo Nation is arid and vast—nearly thirty thousand square miles. Hydrologists struggle to collect much-needed measurements of rainfall there. But now they have help from NASA satellites.


Caltech/R.Hunt(IPAC)

The public can now join the hunt for the elusive Planet Nine, a massive planet astronomers believe might be hidden beyond Neptune.

Pages