“I wouldn’t know a spacetime continuum or a warp core breach if they got into bed with me.” –Patrick Stewart It’s the end of the week once again, and so it’s time for another Ask Ethan segment! There have been scores of good questions to choose from that were submitted this month alone (and you … Read moreAsk Ethan #11: Why does gravity get weaker with distance?
“Orbiting Earth in spaceship, I saw how beautiful our planet is. People, let us preserve and increase beauty, not destroy it!” –Yuri Gagarin Fifty-two years ago today, the first human being left Earth, and we began our journey into outer space. But back in 1961, we didn’t really know how far outer space stretched, or … Read moreInflation, Dark Energy, and the Physics of Spacetime