澳门金沙网上娱乐平台官网:Here’s what alien astronomers would see if they looked at Earth

时间:2019-03-05 08:03:05166网络整理admin

NASA By James Romero This is the inner solar system as it might appear to alien astronomers. It proves we could one day see surface features like oceans, continents, giant storms, and signs of life on Earth-like exoplanets with powerful future telescopes. We have taken a few direct images of Jupiter-sized exoplanets, but doing the same for an Earth-scale world would require a space telescope with a mirror hundreds of metres in diameter. James Webb, NASA’s much-delayed next space telescope,