The cause of this acceleration is a mystery and ... one way to explain it would be by extending our current best model of gravity, general relativity, posited by Einstein in 1915.

This uneven field causes cells to move based on differences in their electrical properties compared ... could allow researchers to more precisely manipulate particles and conduct research not feasible ...

The lack of gravity may cause humans on Mars to evolve differently than on Earth. Mars has one-third the gravity of Earth and we don't know how that could effect people long term because it's ...