Natural Sciences

For the third time in less than two years, physicists have detected billion-year-old ripples in the fabric of space-time. The new recording, like the two others before it, was made using the Laser Interferometer Gravitational-Wave Observatory (LIGO)...

If you look back at history, you see that large transformations in society, the really immense breakthroughs, they always came as a second order of fact—they were the spin-offs of fundamental enquiry, very deep thinking, which can only happen if you...

What struck me was some regularity in the anomaly. The rotational velocities were not just larger than expected, they became constant with radius. Why? Sure, if there was dark matter, the speed of stars would be greater, but the rotation curves...