Lowell Observatory

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.


More than 500-cities worldwide are participating in Saturday’s March For Science. Organizers say it’s a chance to bring awareness to the “very real role” science plays in our lives. Some are concerned the march will fuel the idea that the science community is a special interest group that politicizes its work. Others see it is a chance to celebrate the integrity of research and evidence. Todd Gonzalez is an educator at Lowell Observatory, and a speaker at tomorrow’s march in Flagstaff, one of seven Arizona cities participating. Gonzalez told KNAU’s Aaron Granillo he’s not worried about looking partisan.


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.   


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.

NASA

Six months from today a total solar eclipse will cross the nation from coast to coast. The last time that happened was nearly a century ago. From the Arizona Science Desk, Melissa Sevigny reports on how Arizona astronomers are gearing up for the “Great American Eclipse.”


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