As astronomers study an exoplanet called K2-18b, conflicting research reveals how difficult it is to find evidence of life beyond Earth.

Facebook X Reddit Email Dimethyl sulfide, also known as DMS, sounds like it could be a chemical compound you'd try to avoid on an ingredient label, or the poisonous ingredient in a murder mystery ...

Science News: Recent studies challenge claims of potential alien biosignatures discovered on the exoplanet K2-18b, raising important questions about the search for extraterrestrial life.

In this case, if the signature could be dimethyl sulfide or ethane—a molecule we've seen around planets in our own solar system—they assume the answer that's more common, not the most exciting.

Avi Loeb, a Harvard professor of science and theoretical physicist, told NewsNation that while dimethyl sulfide and dimethyl disulfide appear to be present in the atmosphere of the planet K2-18b ...

Scientists have found what they are calling the strongest sign yet of possible life beyond our solar system after detecting the chemical footprint of gases in an alien planet's atmosphere that on ...

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 ...

Dimethyl sulfide is cool—and a potential biosignature—but scientists are urging caution before we declare a plankton party some 120 light-years away. By Isaac Schultz Published April 23, 2025 ...

On Earth, that gas—called dimethyl sulfide—is mostly produced by living organisms. In April 2024, the James Webb Space Telescope stared at the host star of the planet K2-18b for nearly six hours.

The team's findings, based on their analysis of James Webb Space Telescope (JWST) data, point to an abundance of dimethyl sulfide (DMS) molecules in the atmosphere of a planet known as K2-18b ...

Researchers announced on April 16 that they’d used data from the James Webb Space Telescope (JWST) to detect a gas called dimethyl sulfide (DMS) in the atmosphere of an exoplanet called K2-18b ...