A new study has revealed that exoplanets with the right Earth-like conditions needed to for oxygen-based photosynthesis may be rarer than we previously thought.
Link: https://www.eurekalert.org/news-releases/732560

Astrobiology
Charting the Cosmos: the Concept of Kardashev Civilizations
As we gaze upon the universe, contemplating our place in its vast expanse, we grapple with questions about our future.