It can be unsettling to know invisible dangers like toxic gases may lurk. Toxic gases are harmful to all family members, but ...

The researchers found strong evidence of a chemical called dimethyl sulfide (DMS) in the planet's atmosphere. On Earth, DMS is produced only by living organisms, so it appears to be a compelling sign ...

A new study tested 16 children’s mattresses and found widespread contamination with harmful semivolatile organic compounds ...

In a groundbreaking discovery, scientists have detected complex organic molecules on the surface of Mars—chemicals that are essential for life as we know it. While not direct proof of life, this ...