Victoria Girgis, Lowell Observatory

A new kind of broadband internet is coming to Tuba City on the Navajo Nation, one beamed down from space by so-called “satellite constellations.” This technology can provide much-needed internet access in rural areas. But it comes with a dilemma. KNAU’s Melissa Sevigny reports, the new satellites are so bright and so numerous, astronomers worry about the future of the night sky. 


Hundreds of thousands of people visit the Grand Canyon National Park every summer to marvel at the geology. But to an astronomer, the view gets even better after the sun goes down. The canyon’s first ever “astronomer-in-residence” is Tyler Nordgren. He spoke with KNAU’s Melissa Sevigny from the canyon about why he plans to spend the next month inspiring visitors to look up at the stars.

Adam Block/Mount Lemmon SkyCenter/University of Arizona

Early risers tomorrow morning will have a chance to see the full moon disappear behind Earth’s shadow in a total lunar eclipse. KNAU’s Melissa Sevigny reports.

NASA Goddard Space Flight Center

An Arizona-led spacecraft mission begins its journey back to Earth today after successfully scooping up a sample of an asteroid. KNAU’s Melissa Sevigny reports.


NASA has made the first-ever recording of the sounds of Mars. KNAU’s Melissa Sevigny reports.

Click on the audio to hear the sounds of Mars: