astronomy

NASA/JPL/University of Arizona

A national team of astronomers looking for the hypothetical ‘Planet Nine’ chanced upon two new moons of Jupiter. KNAU’s Melissa Sevigny reports.


Bonnie Stevens

Planetary scientists in Flagstaff study Mars as if they are there. And virtually, they are. Northern Arizona University’s Mars Lab immerses them into the Martian environment with the aid of 3D goggles and the latest images from the Curiosity Rover and orbiting satellites. Christopher Edwards runs the Mars Rover Operations and Analysis Laboratory where he can explore old lake beds, collapsed lava flows, shifting sand dunes and rocky ridges. 


ESA/Hubble, NASA, HST Frontier Fields

An astronomer at Lowell Observatory used the Hubble Space Telescope to peer back in time at very distant galaxies. He found their position in space isn’t random; it’s influenced by other galaxies nearby. KNAU’s Melissa Sevigny reports on the new research.


Bob Wick, BLM

Electronic billboards are restricted in most of Arizona to protect dark skies for astronomers. Now lawmakers have lifted the ban in a region of Mohave County. KNAU’s Melissa Sevigny reports.


Molly Baker

A decade ago Flagstaff suffered a blow when Pluto was “demoted” to a dwarf planet. It was discovered at Lowell Observatory in Flagstaff in 1930 and is a source of pride for the city. But astronomers voted on the definition of a planet and Pluto didn’t make the cut. Now, planetary scientists say that definition is both overly complicated and incomplete.  They’ve suggested a different one. Melissa Sevigny from the Arizona Science Desk spoke with two Lowell scientists about the definition, Will Grundy and Gerard van Belle.   


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