Tagtik on MSN6 小时
NASA discovers planet eight times bigger than Earth
NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth. The ...
Observer1 小时
Elon Musk Launched His Tesla Roadster Into Space 7 Years Ago—It Was Just Seen Again
According to SpaceX’s own calculation, the Roadster completed its first orbit around the Sun in August 2019 and made its first close approach to Mars on Oct. 7, 2020.