Scientists have discovered evidence of large quantities of biosignature chemicals — only known to be made by life on Earth — ...

"If the ultimate result of this story is that the public is more circumspect about future claims of life detection, that's ...

But those yearning for credible evidence of alien lifeforms may be in luck ... this evidence suggests that K2-18b is a Hycean planet, a name used to describe exoplanets covered by a hydrogen ...

"The James Webb Space Telescope, with the UK-built MIRI science instrument on board, is uncovering more alien worlds, and it is powerful enough to examine the make-up of these planets' atmospheres.

The discovery of dimethyl sulfide on K2-18b, a planet 120 light-years away ... K2-18b discovery fuels alien life hopes, but scientists warn contact remains risky Chemical makeup of K2-18b is ...