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Scientists use rover's navigational sensors to measure Mars' gravity

Scientists use rover's navigational sensors to measure Mars' gravity

Science
Feb. 1 (UPI) -- Scientists were able to map Mars' gravity by repurposing data collected by the Curiosity rover's navigational sensors. After realizing Curiosity's accelerometers can be used like gravimeters when the rover is at a standstill, scientists surveyed navigational data collected during the mission's first five years. Researchers were able to plot changes in the Red Planet's gravity along the path the rover took as it ascended Mount Sharp. The new gravity data allowed scientists to estimate the density of the underlying rock along the rover's route. Gravity is weaker on the slopes of Mount Sharp than scientists expected, suggesting the sedimentary rock that forms the mountain isn't all that dense. "The lower levels of Mount Sharp are surprisingly porous," Kevin Lewis of Johns Hop...
UK robot 'to pave way for humans to explore Mars'

UK robot 'to pave way for humans to explore Mars'

Technology
Work has started in Britain on building on a robot vehicle that will be sent to look for life on Mars. The European Space Agency's Mars rover is being constructed in Stevenage with the aim of exploring the Martian surface in 2021.It has a drill to probe up to two metres under the surface of Mars and has instruments on board that can examine the samples it finds.The 300kg robot vehicle is capable of travelling 2cm a second for at least 90 days, but scientists hope it will remain active for as long as the latest American rover Curiosity, which landed in August 2012 and is still exploring. Image: An artist's impression of the ExoMars rover on the Red Planet's surface. Pic: ESA Liz Seward, senior strategist ...
Ryan Hansen joins 'Veronica Mars' revival at Hulu

Ryan Hansen joins 'Veronica Mars' revival at Hulu

Entertainment
Oct. 30 (UPI) -- Ryan Hansen has signed on to reprise his role as Dick Casablancas in Hulu's revival of Veronica Mars. Hansen, who was a series regular on the cult series, which ran for two seasons on UPN and a third season on the CW, will appear in a recurring role alongside series star Kristen Bell in the eight-episode revival, scheduled to premiere on Hulu in 2019. Hansen also appeared in the 2005 crowdfunded film continuation of Veronica Mars. The new limited series, which follows the former teen detective as she attempts to track down a serial killer stalking the streets of Neptune, Calif., will also feature returning series actors Enrico Colantoni (Keith Mars), Jason Dohring (Logan), Percy Daggs III (Wallace Fennel), Francis Capra (Weevil) and David Starzyk (Richard Casablancas). Ha...