Life all over the planet—even far from the coasts—depends on the oceans. A pair of NASA satellites, PACE and SWOT, is giving us a fresh look at Earth’s water. PACE tracks color changes driven by tiny plankton, which give us a big-picture view of ocean life. By measuring sea level height from space, SWOT shows ocean currents and other features in new detail. ... Show More
Sep 30
How Webb Illuminates Stars’ Cloudy Origins
In the space between stars, dark clouds of gas, dust, and ice mingle in a chemical laboratory unlike any on Earth. Ewine van Dishoeck, an astronomer who studies molecules in space and who helped develop an instrument aboard NASA’s James Webb Space Telescope, explains how Webb is ... Show More
22m 43s
Dec 2023
Uncovering the Inner Workings of the Oceans
What comes to mind when you think of the ocean? Maybe a day at the beach — swimming in the waves, snorkeling through coral reefs, fishing, surfing, and sunsets that kiss the blue horizon. But Earth's oceans are more than all of that; they're our planet's defining feature, its lar ... Show More
43m 26s
Apr 2025
Why is Mars red? A new clue to the history of habitability in Martian dust
For decades, scientists hypothesized that Mars’ reddish color came from hematite, an iron oxide thought to have formed through dry oxidation after Mars lost its water. But new research suggests the story is more complex—and more watery—than we once imagined. In this episode, plan ... Show More
54m 56s
Nov 2024
S27E135: Miranda's Oceanic Mystery, Mars' Green Spotted Rocks, and the 2035 Martian Walk Target
SpaceTime Series 27 Episode 135
*Could Uranus Moon Miranda Have a Subsurface Ocean?
A new study suggests that Uranus' moon Miranda may harbour a liquid water ocean beneath its peculiar jigsaw-like surface. The findings, published in the Planetary Science Journal, challenge existi ... Show More
20m 42s
Jul 2
A magical world at the ocean’s edge
In coastal California, researchers grapple with potentially losing a landscape they love. Guests: Rebecca Johnson, Director of the Center for Biodiversity and Community Science at the California Academy of Sciences; Peter Roopnarine, Curator of Invertebrate Zoology & Geology at t ... Show More
36m 42s