Adam Frank in Noema:
“Today is not your first arrival here.” — Hongzhi Zhengjue, 1091-1157 CE
Across 15,000 generations, human beings have looked out at the sentinel stars and felt the pressing weight of myriad existential questions: Are we alone? Are there other planets also orbiting distant suns? If so, have any of these other worlds also birthed life, or is the drama of our Earth a singular cosmic accident? And what about other minds and civilizations? Have others in the universe, through their success as tool-builders and world-makers, also brought themselves to the brink of collapse?
Remarkably, the first answers to these questions are beginning to arrive. Just as Copernicus reimagined the architecture of our solar system five centuries ago, we are once again in a revolution that pivots on planets. A new science called astrobiology has changed the night sky. It already shows us that nearly every star in the galaxy hosts a family of worlds. Using powerful new instruments and theoretical methods, we’re also learning how to search these distant worlds for alien biospheres. In this way, across the next few decades, we might finally gain answers to the ancient question of our place among life, planets and the cosmos.
More here.
Enjoying the content on 3QD? Help keep us going by donating now.