Healthy telescope, slowly falling orbit. Curious what kinds of proposals come back.
Healthy telescope, slowly falling orbit. Curious what kinds of proposals come back.
Good explainer to send anyone who still thinks it's about to explode next week.
My class is about to do something unwise with cardboard.
Every year I show a class a Cassini image like this one, and every year there's a moment of silence. Then someone asks whether it's real. That question is the entire lesson. Photo: Kevin Gill from Nashua, NH, United S…
This one's on the summit of Beinn a Chuallaich in Scotland. There's something about a pile of rocks built by strangers that makes a foggy hilltop feel a lot less lonely. Also, yes, I know: don't build new ones. Photo:…