Ask Ethan

Category archives for Ask Ethan

“Yes, now there is this technological path. But it’s just starting.” -Mae Jemison Earlier this month, Yuri Milner and Stephen Hawking teamed up to announce the Breakthrough Starshot, a $100 million investment in technology that would build a laser array to propel a thin, light “laser sail” spacecraft to approximately 20% the speed of light.…

“If we cannot now end our differences, at least we can help make the world safe for diversity.” -John F. Kennedy No one likes being denied an opportunity — or told they shouldn’t do something they want to — solely because of the way they are. That’s especially true when it comes to something that’s…

“An asteroid or a supervolcano could certainly destroy us, but we also face risks the dinosaurs never saw: An engineered virus, nuclear war, inadvertent creation of a micro black hole, or some as-yet-unknown technology could spell the end of us.” -Elon Musk The possibility of getting hit by a wayward asteroid or comet is a…

“You’ve got to learn to let go.” -Matt Kowalski, Gravity Objects in motion remain in constant motion unless acted upon by an outside force. That’s Newton’s 1st law of motion, and that’s why you’d expect an orbiting satellite and two astronauts orbiting with it to have absolutely no relative forces. Yet if you watched the movie…

“When a person starts to talk about their dreams, it’s as if something bubbles up from within. Their eyes brighten, their face glows, and you can feel the excitement in their words.” -John C. Maxwell One of the most remarkable features of a great number of giant, active galaxies are the presence of jets of…

“Quintessence is a dynamic, time-evolving, and spatially dependent form of energy with negative pressure sufficient to drive the accelerating expansion […] Whereas the cosmological constant is a very specific form of energy.” -Robert Caldwell, inventor of the Big Rip scenario Our Universe began with a period of cosmic inflation: where energy intrinsic to space itself…

“It is in the theory of perception that we have established our bond, or the lie I should say, for which we kill. We are nothing without our image. Without our projection. Without the spiritual hologram of who we perceive ourselves to be or rather to become, in the future. When you are lonely, I…

“Youth always tries to fill the void, an old man learns to live with it.” -Mark Z. Danielewski There are plenty of scientific myths that go around, including many that were generated recently by so-called science communicators that actively harm public knowledge. One of them was a now-famous image of a dark nebula silhouetted against…

“The bedrock nature of space and time and the unification of cosmos and quantum are surely among science’s great ‘open frontiers.’ These are parts of the intellectual map where we’re still groping for the truth – where, in the fashion of ancient cartographers, we must still inscribe ‘here be dragons.’” -Martin Rees We know the…

“You asked me how to get out of the finite dimensions when I feel like it. I certainly don’t use logic when I do it. Logic’s the first thing you have to get rid of.” -J.D. Salinger Now that gravitational waves have been verified to exist, and the first black hole-black hole merger has been…