Ask Ethan #3: A Wild New Idea I Read About

“Observations indicate that the universe is expanding at an ever increasing rate. It will expand forever, getting emptier and darker.” –Stephen Hawking Today’s Ask Ethan comes to us via our question/suggestion box from reader MIUFish, who asks: I read something recently about some people who were doing work looking at the possibility that the mass of things … Read more

Ask Ethan #2: Meet the Oort Cloud

“The great oak of Astronomy has been felled, and we are lost without its shadow.” –Subrahmanyan Chandrasekhar, on the passing of Jan Oort In our new semi-regular series, readers from all over the world (and in low-Earth orbit, too, because why not!) are invited to send in their questions and suggestions for a chance to … Read more

Ask Ethan #1: Back-to-school advice

“Education is an admirable thing, but it is well to remember from time to time that nothing worth knowing can be taught.” –Oscar Wilde As many of you know, last weekend I launched a suggestion box here on the site, and I’ve been overwhelmed by the response: about fifty of you have sent something in to … Read more