The sacrifices of early astronauts paved the way for Apollo’s successes, and so much more. In all of history, only 24 humans have ever escaped Earth’s gravity. The very first launch […]
This century alone has already had a couple of Onesdays (1/11/11 and 11/11/11).
With sodium-sensitive eyes, we’d see it every new Moon. With no detectable gases, the Moon appears to be atmosphere-free. The Moon as seen from a view above the majority of Earth’s […]
Gravitation, all on its own, can reveal what's present in the cosmos like nothing else.
Clinical studies are underway. How we treat them moving forward matters.
Even 13.8 billion years after the Big Bang, we can reconstruct the first 3 minutes. About 100 years ago, we began to truly understand the nature of the Universe for the […]
Can passenger airships make a triumphantly 'green' comeback?
Insomnia is the product of mental or emotional pressure.
You might be inclined to modify gravity instead, but those ideas have grossly unequal evidence supporting them. What is it, exactly, that you’re supposed to do when the predictions of […]
The small step that one man took would never have happened without this narrow escape. On July 20, 1969, history was made as humanity set foot on the Moon for the […]
The laws of physics are not time-reversal invariant. Here’s how we know. No matter when, where, or what you are in the Universe, you experience time in only one direction: forwards. […]
You get out what you put in, and we haven’t truly invested in space since Apollo ended. Humanity should be an interplanetary civilization by now. There is no scientific reason that […]
It’s been spectacularly confirmed by observation, but theoretically, it couldn’t have been any other way. If the Sun were to spontaneously cease emitting light, we wouldn’t know about it for about […]
If you look everywhere between the numbers 1 and 2, you’ll never find 3. Let’s say you have an idea about how our physical reality might be different from how we […]
What qualifies someone for the top position in American government?
These photos of scientific heroes and accomplishments inspire awe and curiosity.
Finding the particle we assume is responsible for dark matter has always been a guessing game. We guessed wrong. You can’t get mad at a team for trying the improbable, hoping […]
American stuff is the stuff of American history, as recorded in still life painting.