Groundhog Day has roots in astronomy added by kHilton February 2, 2017 Groundhog Day is tied to the movement of Earth around the sun. It’s the year’s first “cross-quarter” day. View Full Screen Visit External Site AstronomyEarth MovementGroundhog DaySeasonsSpringWinter 0 comment 0 Facebook Twitter Google + Pinterest kHilton previous post Apple weighs legal action against Trump’s Muslim ban next post Who is affected by Trump’s travel ban You may also like Food Waste: We are the Problem and the... April 2, 2017 Automakers Urge Trump to Undo One of America’s... April 2, 2017 New Webinar: How to Photograph the Milky Way,... March 23, 2017 The Superrich Have Profited From a Broken System—And... March 23, 2017 Why 10 Daily Tons of Ant Poop Keep... March 23, 2017 How Chicago Became the First City to Make... March 23, 2017 Damage, design flaws in Oroville Dam spillway point... March 23, 2017 How Astrophysicists Found a Black Hole Where No... March 23, 2017 The Biggest Tree Canopy on the Planet Stretches... March 23, 2017 No surprise. State Department will approve construction of... March 23, 2017