The Webb Space Telescope picked up traces of dimethyl sulfide on planet K2-18b. On Earth, the molecule comes from microbes and phytoplankton. Also, researchers captured the first confirmed video of a colossal squid swimming in its natural habitat—almost 2,000 feet deep.<h2><a href="https://www.sciencefriday.com/segments/life-on-exoplanet/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">Possible Signature Of Life Detected On Exoplanet—Maybe</a></h2>In major galactic news, scientists may have detected <a href="https://www.sciencefriday.com/segments/life-on-exoplanet/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">possible signs of life</a> on a planet right here in our galaxy. Is this one of the best hints we’ve gotten that alien life exists? Host Flora Lichtman gets into it with Anil Oza, the Sharon Begley Science Reporting Fellow at STAT and MIT. They discuss the latest in alien life, the Trump’s administration cuts to the “indirect costs” of science funding, the largest map of a brain yet, and how salmon on anti-anxiety meds make bolder choices.<h2><a href="https://www.sciencefriday.com/segments/colossal-squid-video/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">A Colossal Squid Video? That’s A Big Deal</a></h2>This week, scientists announced that they had captured the first confirmed video of a colossal squid in its natural habitat, recorded some 1,968 feet (600 m) below the ocean surface near the South Sandwich Islands. While there have been sightings of the colossal squid before, they have mainly been of individuals entangled with fishing equipment—and much of what is known about the elusive creatures comes from dead specimens.<a href="https://www.sciencefriday.com/segments/colossal-squid-video/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">The video</a> was captured by scientists on board the R/V Falkor (too) during an Ocean Census expedition searching for new marine life. As the remotely operated vehicle SuBastian descended towards the ocean floor, its cameras caught sight of a juvenile squid roughly one foot long (30 cm), and captured over a minute of high resolution video. The footage was later analyzed by experts and determined to be a colossal squid.Colossal squid are estimated to grow up to 23 feet (7 m) in length and can weigh as much as 1,100 pounds (500 kg), making them the heaviest invertebrate on the planet. They are not the same as the giant squid, an entirely different species, which can grow to be longer but are lighter and slimmer.Dr. Kat Bolstad, one of the squid experts the researchers sent their videos to for identification, joins Host Flora Lichtman to talk about the sighting.Transcripts for each segment will be available after the show airs on <a href="https://www.sciencefriday.com/episodes/april-18-2025/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri" target="_blank">sciencefriday.com.</a>
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