Nucleus

Perovskites are quickly emerging in the solar energy field, thanks to their ability to convert photons into electricity. Now this process has been tweaked to pick up neutrons instead, making an effective detector for leaks from radioactive materials.

One of the most frustrating things about exercise is how easily progress can be undone, but maybe not all is lost after all. Researchers have now found that muscles keep their nuclei from past growth, which makes it easier to rebuild later after a period of inactivity.

An international team of scientists using the largest telescope in the world at Keck Observatory has overcome a major obstacle to the Big Bang model of the Universe.