In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

In Sept. 2012, NASA’s Van Allen Probes observed the radiation belts around Earth had settled into a new configuration, separating into three belts instead of two. Scientists think the unusual physics ...

‘Oumuamua (1I/2017 U1) is the first object of interstellar origin observed in the Solar system. Recently, Micheli et al. (2018) reported that ‘Oumuamua showed deviations from a Keplerian orbit at a ...

Add Yahoo as a preferred source to see more of our stories on Google. Advances in radiotherapy involve combining new technologies with clinical expertise. Kateryna Kon/Science Photo Library via Getty ...

From radiopharmaceuticals to hypofractionated radiation therapy, one expert explained the current landscape of radiation treatments for prostate cancer. Radiopharmaceuticals, defined by the National ...

There are hints that the universe may be behaving unexpectedly, and astrophysicists are racing to explain why. Their ideas to account for the surprising result include allowing dark matter and dark ...

Nearly half of all cancer patients undergo radiation therapy as part of their care. Ionizing radiation, or the emission of high-energy waves or particles, works as a therapy by damaging a cancer ...