Shorthorn Light Swap Challenge takes students door to door promoting dark skies Nov 16 Written By Stephen C Hummel External article by the Big Bend Sentinel. Click the image above to read. Stephen C Hummel
Shorthorn Light Swap Challenge takes students door to door promoting dark skies Nov 16 Written By Stephen C Hummel External article by the Big Bend Sentinel. Click the image above to read. Stephen C Hummel
