Sara Seager, concerned we might come across E.T. life yet fail to identify it because it doesn’t resemble Earth life, sets out to demonstrate that life can persist in atmospheres very different from our own.
Link: https://skyandtelescope.org/astronomy-news/life-under-a-hydrogen-sky/

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.