So, if astrobiologists ever do find alien life with a weird chemistry that uses some liquid other than water, it's not likely to be methane, ammonia, or molten rock — but somewhere out there ...

Maybe life could use liquid methane instead of water ... By that measure, we might already have found alien life. That is to say, multiple pieces of evidence exist that we may someday recognize ...

The Hubble Space Telescope discovered water vapor in K2-18b's atmosphere in 2019, and JWST has detected the presence of carbon dioxide and methane in the planet's atmosphere, along with a lack of ...

All life on our planet is carbon-based, so finding organics elsewhere could hint, but not necessarily confirm, the existence of alien life ... kept an eye on how much methane it was able to ...

These lakes would not spawn similar life to Earth because they are made of liquid methane, not water ... which would mean our only chance of detecting aliens is on planets beyond our solar ...

The test, performed for the development of the Cosmos engine for the Zero rocket, lasted 10 seconds and showcased liquid biomethane ... with their respective methane-fuelled Zhuque-2 and kerosene ...