Using spacecrafts' orbital irregularities to "see" beyond the surface of Mars. A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. "Gravity maps allow us to see inside a planet, just as a doctor uses an X-ray to see inside a patient," said Antonio Genova of the Massachusetts Institute of Technology (MIT), Cambridge, Massachusetts. "The new gravity map will be helpful for future Mars exp

11K views · 469 reactions | From Moon buggy to Mars rover Scientists repurposed sensors on @MarsCuriosity to measure a Martian mountain’s gravity. It’s similar to an experiment Apollo 17 astronauts conducted on the Moon. https://go.nasa.gov/2Tnqqwb | NASA Jet Propulsion Laboratory | Facebook

Mars or Earth? Super speed or super strength? Wizards or sorcerers? These are the greatest questions of our time. | SYFY