保护地球, 探索宇宙, 发现文明
2022年9月9日 Interstellar Voyager Poster Illustration Credit: NASA, JPL-Caltech, Voyager Explanation: Voyager 1 and Voyager 2 were launched in 1977 on a grand tour of the outer planets of the Solar System. They have become the longest operating and most distant spacecraft from Earth. Both have traveled beyond the heliosphere, the realm defined by the influence ...
2019 August 25 Leaving Earth Video Credit: NASA/JHU Applied Physics Lab/Carnegie Inst. Washington Explanation: What it would look like to leave planet Earth? Such an event was recorded visually in great detail by the MESSENGER spacecraft as it swung back past the Earth, eight years ago, on its way in toward the planet Mercury. Earth can be seen rotating in t...
2019 August 18 Human as Spaceship Space Image Credit: NASA, ESA, Hubble, and J. Maiz- Apellániz (IAA); Acknowledgement: D. De Martin; Human Image Copyright: Charis Tsevis; Composition: R. J. Nemiroff Explanation: You are a spaceship soaring through the universe. So is your dog. We all carry with us trillions of microorganisms as we go through life. These mul...