Joe Levy shows how glaciers on Mars can reveal its climate history.

Marianne Alleyne, Aimy Wissa, and Ophelia Bolmin explain how the click beetle amplifies power to pull off its signature jump.

Mara Reed and Michael Manga explore why Yellowstone's Steamboat Geyser resumed erupting in 2018.

Martin Bizzarro tells what zircon crystals reveal about the geological history of Mars.

Aleix Martinez explains why facial expressions often are not accurate indicators of emotion.

Amanda Rodewald, Ivan Rudik, and Catherine Kling talk about the hazards of ozone pollution to birds.

Se-Jin Lee and Emily Germain-Lee explain a way to preserve bone and muscle mass during spaceflight.

David Crowder and Gengping Zhu explain how to predict the spread of the Asian giant hornet.

Brian Fields explores a hypothesis that a supernova may be responsible for a mass extinction.

Eric Horvitz discusses AI’s promises and perils.