Mars rover Mars rover A Mars rover is a motor vehicle that propels itself across the surface of the planet Mars upon arrival. Rovers have several advantages over stationary landers: they examine more territory, and they can be directed to interesting features, they can place themselves in sunny positions to weather winter months, and they can advance the knowledge of how to perform very remote robotic vehicle control. There have been four successful robotically operated Mars rovers. The Jet Propulsion Laboratory managed the "Sojourner" rover, the "Opportunity" rover, "Spirit" rover, and, now the "Curiosity" rover. On January 24, 2016 NASA reported that
Hard Time on Planet Earth people. Most critics detested the series. According to "People" magazine, "About 20,000 RPM—that's how fast I reckon Walt Disney must be spinning in his grave with shows like this on the air … It is just one long, bad commercial." It did, however, garner a small but loyal fanbase throughout its time on the air. The show is sometimes cited in lists of "One-Hit Wonder" TV shows from the '80s and '90s. Hard Time on Planet Earth Hard Time on Planet Earth is an American science fiction series that aired on CBS as a midseason replacement in 1989. Airing for