Ask Ethan #11: Why does gravity get weaker with distance?

“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?

Ask Ethan #9: Why everything rotates

“Galileo got it wrong. The Earth does not revolve around the Sun. It revolves around you and has been doing so for decades. At least, this is the model you are using.” –Srikumar Rao It’s the end of the week, so that means its time to take on another one of your questions from the … Read moreAsk Ethan #9: Why everything rotates

What does the Universe really look like?

“On a cosmic scale, our life is insignificant, yet this brief period when we appear in the world is the time in which all meaningful questions arise.” –Paul Ricoeur Ask anyone who’s looked up at a dark sky on a clear, moonless night, and you’ll immediately hear tales about how incomprehensibly vast the Universe is. … Read moreWhat does the Universe really look like?

Does Dark Matter affect the motion of the Solar System?

“To disagree leads to study, to study leads to understanding, to understand is to appreciate, to appreciate is to love. So maybe I’ll end up loving your theory.” –John Wheeler Out there in the Universe, there’s a lot to marvel at. Over billions of years, gravity has attracted different portions of the expanding Universe together … Read moreDoes Dark Matter affect the motion of the Solar System?

If it comes back to you, it's yours!

“Not even light can escape such hollowing, this huge mass in a small space. Even the Milky Way with its open arms is said to have a black hole at its heart.” -Susan B.A. Somers-Willett Our Milky Way is home to us all. With its hundreds of billions of stars, massive spiral arms, dust lanes, … Read moreIf it comes back to you, it's yours!

Empty space has more energy than everything in the Universe, combined

“Nothing¬†exists except atoms and¬†empty space; everything else is just opinion.” –Democritus of Abdera When you take a look out at the Universe, past the objects in our own solar system, beyond the stars, dust and nebulae within our own galaxy, and out into the void of intergalactic space, what is it that you see? What … Read moreEmpty space has more energy than everything in the Universe, combined