Caltech scientists have found a fast and efficient way to add up large numbers of Feynman diagrams, the simple drawings ...

As defending Earth from unexpected intruders such as asteroids is part of my expertise , I immediately started receiving questions from my students and colleagues about what was happening. When ...

When scientists spot an asteroid whose trajectory might take it close to Earth, they monitor it frequently and calculate the probability that it might collide with our planet.

At the time of the announcement in January, the asteroid’s impact probability was reported to exceed 1%. The impact probability describes how likely a hazardous asteroid is to hit Earth. For example, ...