Join me as I take my kindergarten students on a fun and interactive classroom spacewalk! We explore the solar system, meet ...

Oh, we humans do love a cleanly defined boundary, don’t we? They make things easier, after all. If we’re trying to categorize something, knowing what labeled bin to put it in is handy. If we’re ...

Peggy Hollinger Trump’s 21st-century frontier: the planet Mars. As the cameras panned across the assembled politicians and ...

Photoshop CC 2015 tutorial showing how to create a powerful solar eclipse with spectacular, radiating clouds of gas & dust in ...