Given the choice, I wouldn’t be a bear, though it’s tempting to skip this dark season and live off my fat. Far below the metabolic plane of sleep, my body would be as cold as death to the touch. Parts of the brain that dart about in REM sleep are turned off, brain functions reduced […]
The Cosmos
Cosmology is timeless, perhaps literally—as this post argued on January 23, 2015. In the 1992 documentary A Brief History of Time, Stephen Hawking describes what we would see if we were observing an astronaut nearing a black hole’s event horizon—the barrier beyond which gravitation is so great that not even light can escape. He invites […]
On October 25, 2010, LWON welcomed a new occasional feature, “Ask Mr. Cosmology,” which invites readers to contribute to a mailbag full of questions about…The Wonders of the Universe! This entry comes from March 26, 2012. Q: Can neutrinos travel faster than light? Mr. Cosmology: Depends what you mean by “light.” Light, as in light rail? Yes. Light, […]
I found this ill-cared-for painting from 1976, when I was nine, of a spaceship either taking off or landing on a barren world. This was before Star Wars, but I was well-steeped in forbidden worlds and Star Trek. I dreamed of alien planets, their skies red or green, their landscapes sere and wind-torn. I stared […]
By the time you read this post, 2020 will have already arrived at the South Pole. Even if you read it the instant it pops up on the Internet, at 7 a.m. EST December 31, 2019, the New Year will already be an hour old. You don’t have to go to the South Pole to […]
The world of science entered November 6, 1919, as gray as a doughboy and exited it dancing like a flapper. That afternoon, British Astronomer Royal Sir Frank Dyson announced at a special meeting of the Royal Society in London that a recent experiment had validated a new theory of relativity. The occasion provided one of […]
The TESS telescope is a shiny little thinking metal tube, drinking the light of 20 million stars in our cosmic neighborhood. It launched last year on a voyage to identify planets that look like this one—a miraculous feat, if it succeeds. Among the panoply of planets found so far, there is positively no place like […]
@nattyover: I turn for comfort to “A Dying Universe: The Long Term Fate and Evolution of Astrophysical Objects” https://arxiv.org/pdf/astro-ph/9701131.pdf @nattyover is Natalie Wolchover, science writer and editor at Quanta. “A Dying Universe” is a paper I love and have loved for years. The paper’s abstract: “We consider,” it says, how planets, stars, galaxies, and the […]