Voyager 2 flew by Uranus in 1986, giving us our only up-close look at the planet – but unusual space weather just before the craft arrived has given us a misleading idea about the planet’s magnetic fi ...
Astrobiologist Dirk Schulze-Makuch from the Technische Universität Berlin in Germany believes that humans may have unintentionally killed all life on Mars in the 1970s. NASA's Viking 1 mission in 1975 ...