The biosignatures were rooted in tentative detections, and this sparked debate amongst astronomers, who were skeptical about ...

Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres.

Dimethyl sulfide is the largest natural source of atmospheric sulfur on Earth, which means that it gets into the atmosphere and cycles around. But it starts its journey in the ocean.

Last month, astronomers using the James Webb Space Telescope made headlines by announcing they had detected hints of the chemicals dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) on the planet.

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. ‘We ...

This April, news reports linked the stinky gas dimethyl sulfide (DMS) in the atmosphere of a distant exoplanet called K2-18b to possible life on it. The reports, prompted by work led by astronomer ...

Basically, what they found was a particular color in the atmosphere of this planet, K2-18b, that is produced by a molecule called dimethyl sulfide. We only know about dimethyl sulfide on Earth as ...

According to Space.com, the James Webb Space Telescope found indications of dimethyl sulfide in K2-18b’s atmosphere using two of its specialized instruments.

Using the James Webb Space Telescope, scientists found traces of two gases - dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) - on a planet named K2-18b.

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.

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 ...