Gravity

Category archives for Gravity

“Some say the world will end in fire, Some say in ice. From what I’ve tasted of desire I hold with those who favor fire. But if it had to perish twice, I think I know enough of hate To say that for destruction ice Is also great And would suffice.” -Robert Frost Depending on…

“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…

“One of the most tragic things I know about human nature is that all of us tend to put off living. We are all dreaming of some magical rose garden over the horizon instead of enjoying the roses that are blooming outside our windows today.” -Dale Carnegie Our new Ask Ethan segment has been really…

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…

“I followed him at the time and thought he was hysterical.  He was the first serial killer, a new kettle of fish, because we didn’t have the detection techniques in those days.” -Matthew Bright You can’t get mad at a team for trying the improbable, hoping that nature cooperates. Some of the most famous discoveries…

The Unlikely King of the Kuiper Belt

“It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters.” -Friedrich Nietzsche Although the innermost planets, from Mercury through Saturn, were known since ancient times, it’s only since the advent of the telescope that we’ve discovered what really lives in our Solar…

Ask Ethan #6: The Center of the Universe

“If you look for truth, you may find comfort in the end; if you look for comfort you will not get either comfort or truth only soft soap and wishful thinking to begin, and in the end, despair.” -C. S. Lewis And yet, when you search for the truth, you often find answers that butt…

How to reach the outer solar system

“Even in hindsight, I would not change one whit of the Voyager experience. Dreams and sweat carried it off. But most of all, its legacy makes us all Earth travelers among the stars.” -Charley Kohlhase In the early days of space exploration, it was quite a feat just to get up and out of Earth’s…

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…

The Little Bit of Dark Matter We Know

“A cosmic mystery of immense proportions, once seemingly on the verge of solution, has deepened and left astronomers and astrophysicists more baffled than ever. The crux … is that the vast majority of the mass of the universe seems to be missing.” -William J. Broad It was in the 1930s, looking at dense clusters of…