Einstein

Scientists look around the universe and see amazing structure. There are objects and processes of fantastic complexity. Every action in our universe follows exact laws of nature that are perfectly expressed in a mathematical language. These laws of...

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)...

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...

Perhaps the most fundamental philosophical question that you can ask in science is: "Why are we here?"

To understand the universe, we have to bring together the two key ideas that are governing modern physics. On the one hand, we have Einstein’s...