There is no good place to be when a nuclear bomb goes off. Anything too close is instantly vaporized, and radiation poses a serious threat.

Research suggests that a pulse of UV-B played an important part in the end Permian mass extinction event 250 million years ago.

Black holes are the most extreme objects in the universe, packing so much mass into so little space that nothing can escape.

Astrophysicists say that there is a clear, unambiguous signal in the cosmos which could eliminate inflation as a possibility.

The MSK clinical trial was investigating — for the first time ever — if immunotherapy alone could beat rectal cancer that had not spread.

Scientists propose the idea of a multilayer deflective film to be deployed at the Lagrangian Point decreasing the incident sunlight by 1.8%.

Researchers have demonstrated Alfvén waves accelerating electrons under conditions that correspond to Earth’s magnetosphere.

Researchers have optimized the design of a nuclear battery generating power from the beta decay of nickel-63, a radioactive isotope.

MUSE and HelioSwarm will help improve our understanding of the dynamics of the Sun-Earth connection, and the changing space environment.

Scientists have discovered stars unexpectedly blasting out radio waves, possibly indicating the existence of hidden planets.

Measuring a magnetic field isn't so hard if you're inside of it. Measuring a magnetic field remotely is an entirely different story.

Commercial flight crews have to work with the occupational hazard of aviation radiation exposure. Aviation guidelines aim to mitigate it.

Therapies should be highly effective and as free as possible of side effects—a big challenge, particularly in the case of cancer.

Sending human travelers to Mars would require scientists and engineers to overcome a range of technological and safety obstacles.

Tiny iron nanoparticles unlike any found naturally on Earth are nearly everywhere on the moon—and scientists are trying to understand why.

A team of NASA researchers has developed a technique to predict radiation risk on the International Space Station for future exploration.