French novelist Jules Verne delighted 19th-century readers with the tantalizing notion that a journey to the center of the Earth was actually plausible. Since then, scientists have long acknowledged that Verne’s literary journey was only science fiction. The extreme temperatures of the Earth’s interior – around 10,000 degrees Fahrenheit (5,537 Celsius) at the core – …

In one week, NASA’s Mars 2020 mission will be arriving at the red planet, and hopefully will place the Perseverance Rover on the surface. Jim Bell is the primary investigator leading a team in charge of one of the camera systems on Perseverance. Bell is a professor in the School of Earth and Space Exploration …