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Science Sessions Podcast: Kerry Sieh recounts the hunt for a meteorite impact crater in Southeast Asia.
  • Volume 117, Issue 5: View articles in the latest issue of PNAS.
    Volume 117, Issue 5: View articles in the latest issue of PNAS.
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  • Latest in Evolution: Reconstructing the palate of an Early Cretaceous bird. Click to read more. Image courtesy of Zhonghe Zhou.
    Latest in Evolution: Reconstructing the palate of an Early Cretaceous bird. Click to read more. Image courtesy of Zhonghe Zhou.
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Efforts are underway to exploit a strategy that could generate fusion with relative ease. Image credit: Princeton Plasma Physics Laboratory.
News Feature: Small-scale fusion tackles energy, space applications
Efforts are underway to exploit a strategy that could generate fusion with relative ease.
Image credit: Princeton Plasma Physics Laboratory.
No one had seen one of these huge red stars wink out of existence with so little fuss before. Image credit: Shutterstock/Genevieve de Messieres.
Inner Workings: A massive star dies without a bang, revealing the sensitive nature of supernovae
No one had seen one of these huge red stars wink out of existence with so little fuss before.
Image credit: Shutterstock/Genevieve de Messieres.
Journal club: Dopamine-making neurons, an ongoing mystery, play a bigger role in reinforcing learning than in initiating action
Journal club: Dopamine-making neurons, an ongoing mystery, play a bigger role in reinforcing learning than in initiating action
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A deep-learning algorithm could potentially improve diagnosis and classification of neurological abnormalities. Image courtesy of Weicheng Kuo, Christian Hӓne, Pratik Mukherjee, Jitendra Malik, and Esther Lim Yuh
Brain hemorrhage detection by artificial neural network
A deep-learning algorithm could potentially improve diagnosis and classification of neurological abnormalities.
Image courtesy of Weicheng Kuo, Christian Hӓne, Pratik Mukherjee, Jitendra Malik, and Esther L. Yuh.
A study finds a shift in onset of El Niño events from eastern to western Pacific and increased frequency of extreme El Niño events since the late 1970s. Image courtesy of NOAA National Environmental Satellite, Data, and Information Service (NESDIS).
Changing El Niño properties
A study finds a shift in onset of El Niño events from eastern to western Pacific and increased frequency of extreme El Niño events since the late 1970s.
Image courtesy of NOAA National Environmental Satellite, Data, and Information Service (NESDIS).
A study explores how various types of food affect both human health and the environment. Image courtesy of Pixabay/esigie.
Environmental and health impacts of food
A study explores how various types of food affect both human health and the environment.
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Proceedings of the National Academy of Sciences: 117 (5)
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Science Sessions Podcasts

Kerry Sieh recounts the hunt for a meteorite impact crater in Southeast Asia.
Impact crater in southern Laos
Kerry Sieh recounts the hunt for a meteorite impact crater in Southeast Asia.
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Profile of NAS member and molecular biologist Mary Lou Guerinot. Image courtesy of Olga Zhaxybayeva (Dartmouth College, Hanover, NH).
Featured Profile
Profile of NAS member and molecular biologist Mary Lou Guerinot
Image courtesy of Olga Zhaxybayeva (Dartmouth College, Hanover, NH).

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