Enlarge / The slightly hazy, light patch in the middle of the image is the DF2 galaxy, so diffuse that other galaxies are clearly visible behind it. (credit: NASA, ESA, and P. van Dokkum) The first evidence for dark matter were galaxies that behaved as if they had far more matter than could be accounted […]
Produced and directed by Corey Eisenstein. Click here for transcript. (video link) Greetings, Arsians! We have something special for you today: the premiere of a new science series we’re creating, called Edge of Knowledge. We’ve recruited physicist and author Dr. Paul Sutter (Google Scholar link) to be our host and guide on an eight-episode romp […]
An X1.6 class solar flare flashes in the middle of the sun on Sept. 10, 2014. (credit: NASA/SDO) Dark matter is proving to be a rather frustrating topic for physicists, cosmologists, and other outward-looking scientists. All the data for dark matter is gravitational, and the lack of other evidence only draws a box on the […]
Enlarge / Astronomers mapped out the stars (shown here in blue) and gas (green) of the strange galaxy known as AGC 114905. (credit: Javier Román and Pavel Mancera Piña) Three years ago, Filippo Fraternali and his colleagues spotted a half dozen mysteriously diffuse galaxies, which looked like sprawling cities of stars and gas. But unlike […]
Enlarge / Astronomers mapped out the stars (shown here in blue) and gas (green) of the strange galaxy known as AGC 114905. (credit: Javier Román and Pavel Mancera Piña) Three years ago, Filippo Fraternali and his colleagues spotted a half dozen mysteriously diffuse galaxies, which looked like sprawling cities of stars and gas. But unlike […]
A mile below ground, a sign hangs over the door to the LUX dark matter experiment telling visitors how far to Wall Drug—in both dimensions. (credit: Matthew R. Francis) Update, Sept. 6, 2021: It’s Labor Day Weekend in the US, and even though most of us are continuing to call home ” the office , […]
Enlarge / A reconstruction of the cosmic web— a vast network of filamentary structures of matter spanning the universe—modeled on the growth patterns of slime mold. (credit: Joseph N. Burchett et al./AJL) There’s rarely time to write about every cool science-y story that comes our way. So this year, we’re once again running a special […]