To scientists, asteroids are cosmic time capsules. They’ve remained mostly unchanged since the solar system’s birth, making them perfect subjects for understanding how planets—and even life—came to be ...

For the first time, scientists have watched high‑energy cosmic rays at work deep inside a thick cloud of gas, not just at its outer surface. Using the High Altitude Water Cherenkov Observatory (HAWC), ...

Where starlight doesn't reach, new things are born: For the first time, an international research team has directly measured the effect of cosmic radiation in a cold molecular cloud. The observation ...