In a new study published in Physical Review Letters, scientists have performed the first global simulations of monster shocks ...

When NASA launched the Pioneer probes, they were met with an intriguing mystery. At around 20 astronomical units, both spacecraft began accelerating towards the Sun.

You see this all the time in textbooks: This is often described as "the acceleration due to gravity". Is this really the best thing to call this? No. A better name would be "the local gravitational ...