collisions

In many baseball-obsessed countries like Korea, Japan and the United States, with spring months comes the start of the season and quite a few balls flying through the air. But it's not just balls that can be thrown. On the tiniest field…

A new analysis supports the idea that particles of light (photons) colliding with heavy ions create a fluid of "strongly interacting" particles. The calculations are based on the hydrodynamic particle flow seen in collisions of various…

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A Cruise vehicle in San Francisco, California, on Wednesday Feb. 2, 2022.David Paul Morris | Bloomberg | Getty ImagesU.S. automotive safety officials have opened a formal probe into the autonomous driving system used by General Motors'…

In much of the United States, there is a twice-yearly shift in timekeeping between standard time and daylight saving time, or DST, which delays both sunrise and sunset to make mornings darker and evenings brighter. Recently, scientists,…

Nuclear physicists studying particle collisions at the Relativistic Heavy Ion Collider (RHIC) -- a U.S. Department of Energy Office of Science user facility at DOE's Brookhaven National Laboratory -- have new evidence that particles called…

A black hole is usually where information goes to disappear -- but scientists may have found a trick to use its last moments to tell us about the history of the universe. In a new study, two University of Chicago astrophysicists laid out a…

Collisions of comets, asteroids and other Near-Earth Objects containing carbon-based molecules and water ice with Earth may have led to the origin of life on our planet. The…

Asteroid collisions with Earth have resulted in formation of diamond materials with unusual and exceptional properties. High-energy shock waves from an asteroid collision around…

A new study shows a deep connection between some of the largest, most energetic events in the universe and much smaller, weaker ones powered by our own Sun. The results come from a long observation with NASA's Chandra X-ray Observatory of…