PNAS Science Sessions

Exploring the length of human conversations 05.04.2021 9:36 ↓

Adam Mastroianni and Daniel Gilbert explore why conversations almost never end when people want them to.

Climate history of Mars 22.03.2021 11:55 ↓

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

How click beetles jump 08.03.2021 13:15 ↓

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

Eruption of Steamboat Geyser 22.02.2021 16:44 ↓

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

Geological history of Mars 08.02.2021 12:35 ↓

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

Learning the language of facial expressions 25.01.2021 15:11 ↓

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

Hazards of ozone polution to birds 04.01.2021 16:39 ↓

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

Preserving muscle and bone mass in space 14.12.2020 18:01 ↓

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

Predicting the Asian giant hornet's spread 23.11.2020 12:04 ↓

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

Supernova and mass extinction 09.11.2020 21:44 ↓

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

Future of artificial intelligence 26.10.2020 23:59 ↓

Eric Horvitz discusses AI's promises and perils.

Origin and diversification of penguins 12.10.2020 17:15 ↓

Juliana Vianna and Rauri Bowie explain the origin and diversification of penguins.

Economics of Greenland ice sheet melting 28.09.2020 17:18 ↓

William Nordhaus explains the economic consequences of Greenland ice sheet melt.

Military conscription and public sector employment 14.09.2020 16:30 ↓

NAS member Dalton Conley explains how the Vietnam War draft lotteries are a natural experiment for studying how military service affects life outcomes.

Transitions tied to early farming 31.08.2020 17:17 ↓

Clark Larsen describes the costs of urban life a Neolithic city.

Soil bacterium that lives on air 17.08.2020 14:34 ↓

Mette Svenning and Alexander Tveit describe a bacterium that can live on gases in the air.

Exploring bivalve shell design 03.08.2020 15:21 ↓

Derek Moulton explains the mathematics behind bivalve shell design.

Origins of the kinetochore 20.07.2020 17:13 ↓

Eelco Tromer and Jolien van Hooff explain the origins of the kinetochore in eukaryotic cells.

Breaking the STEM ceiling 06.07.2020 16:12 ↓

Fabiola Gianotti, Marcia McNutt, and Donna Shalala discuss the past, present, and future of women in STEM.

Size limits of ice 22.06.2020 14:09 ↓

Francesco Paesani, Thomas Zeuch, and Valeria Molinero discuss the size limits of ice crystals.

How marine reptiles moved from land to sea 08.06.2020 11:35 ↓

Julia Schwab and Steve Brusatte describe how marine reptiles made the evolutionary move from land to sea.

Nutrient dilution and grasshopper decline 26.05.2020 6:42 ↓

Ellen Welti explains how grasshoppers in a Kansas prairie could be in decline even with abundant grass.

Protein design and its applications 11.05.2020 18:25 ↓

NAS member David Baker describes how to design proteins from scratch and the products of his lab's own protein design efforts

Active learning in STEM 04.05.2020 5:46 ↓

Elli Theobald and Scott Freeman describe the benefits of active learning for underrepresented minority students.

Designing street networks 20.04.2020 6:53 ↓

Adam Millard-Ball and Chris Barrington-Leigh explain trends in urban street network design.