Signs of life on K2-18 b are revisited as a new NASA-led study finds no conclusive evidence for dimethyl sulfide, tempering ...

New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.

Feeling a little off lately? Tapping your feet nonstop? Overthinking something on repeat? These could be subtle signs of ...

The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting environments for long stretches in the ancient past, a new study suggests.

There’s often a point in the hurricane season – typically in August – when forecast models wake up, suddenly realizing the ...

The U.S. Department of Health and Human Services has launched a reform of the organ-transplant system and threatened to close ...

A congressional hearing on Tuesday will look at ensuring patient safety in the organ procurement and transplant system.

The disturbance we've been following in the tropical Atlantic has perked up a little. The National Hurricane Center has ...

Some computer forecast models are showing signs that the Atlantic Basin’s Main Development Region between Africa and the Caribbean islands may be starting to see an uptick in tropical activity as we ...