To be honest, we all get pretty excited when we see some bubbles! But for NASA researchers in Iceland, these aren't just any bubbles—they’re gases created exactly where water and rock interact. By scuba diving to collect "gassy core" samples from the sediment, scientists are capturing that reaction in real time. Since ocean moons like Europa and Enceladus could have similar underwater hydrothermal vents, grabbing these tricky samples on Earth helps us figure out what kinds of measurements we’ll need to take when we finally search those alien oceans for life. Want to explore more? Watch the full episode below. 👇