In April, astronomers said they had detected a possible signature of life on the exoplanet K2-18b. Now, three independent ...

But new research from the University of Chicago is urging caution. After analyzing data from multiple observations of the ...

In April, scientists captured global attention by announcing they'd found a molecule in a faraway planet's atmosphere that ...

In this case, they are taking information from a new study that was published in the Astrophysical Journal Letters and using ...

Astronomers published evidence of possible biosignatures on the planet K2-18b earlier this month, but another look at the data suggests the finding could be statistical noise ...