Astronauts on the International Space Station work out two hours a day to fend off the bone and muscle loss that happens outside the pull of Earth’s gravity. But what if a drug could replace that exercise? A group of musclebound mice might hold the answer—and it could not only help astronauts that face longer and longer missions, but also people suffering from a range of diseases back on Earth.

Every week there are numerous scientific studies published. Here’s a look at some of the more interesting ones.

Using gene therapy to edit embryos, sperm or eggs in order to improve health conditions in a child should not be conducted due to the unreliability of the science, as well as due to significant ethical and moral concerns.

Artificial intelligence (AI) and machine learning (ML) are enabling clinical trial sponsors to fill in the gaps when real world evidence is incomplete or inconsistent. Trials suggest it can do even more, detecting early indicators of disease, and even quantifying pain.