Tags : unmanned spacecraft

Space Science • 24 May 2019

Looking back on the achievements after 60 years of human conquest of the universe

in 1957, the first successful satellite launcher orbited the earth. since then, after 60 years of effort, humans have taken the unmanned spacecraft to touch the solar system belt,

Space Science • 24 May 2019

NASA's Cassini spacecraft is about to commit suicide on Saturn next week

in the coming week, the cassini spacecraft will fly through saturn's atmosphere and crash into the planet's surface after 13 years of discovering its giant planet and moons.