"Until we can separate these signals more clearly, we have to be especially careful not to misinterpret them as signs of life ...

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 ...