Issues
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Cover Image
Cover Image
Cover: The search for extraterrestrial intelligence (SETI) relies on radio telescopes outfitted with extremely sensitive receivers. Early hunts used telescopes intended for conventional astronomical observations. The Allen Telescope Array, pictured here, is the first radio telescope designed specifically for SETI; it can probe several stellar regions and frequency bands at once. To learn about SETI’s connections to artificial intelligence and our own future, see the article by Rebecca Charbonneau on page 36. (Image by Linus Platt via Getty Images.)
Readers' Forum
Changing the clocks: Latitudes and attitudes
Multidimensional measurements
Factors for assessing researchers
Search and Discovery
Elusive helium stars identified in archival data
After reinterpreting measurements for studying gamma-ray bursts, researchers found the progenitors of some supernovae.
Atomic force microscopy gets a feel for electron spins
The microscopic mechanical measurements yield new insights into single molecules’ chemical properties—and even their isotopic composition.
Issues and Events
Panel recommends road map for US particle physics
The community welcomes the recommendations, recognizing them as fair and balanced within a constrained budget.
US takes another look at recycling nuclear fuel
Proponents see a reduction in the need for uranium mining and more efficient, cheaper reactors. Opponents see a risk of proliferation.
Articles
Sea changes for scientific ocean drilling
An era of exploration and discovery beneath the seafloor is coming to an end. Yet there is much more to learn.
SETI, artificial intelligence, and existential projection
SETI’s birth during the Cold War may have prompted consideration of existential threats to humanity and proposals for using nuclear bombs to communicate with extraterrestrials.
Astronomy data in the classroom
Teachers bring telescope data “down to Earth” to provide students with real-world science experiences.
Translating scientific papers for the public
Eager to make your research accessible to a general audience without glossing over all the effort that has gone into your work? Try creating “doodle summaries” of your papers.
Books
To rule the waves
Physics of Wave Turbulence, Sébastien Galtier
New Products
Quick Study
From cracks to atoms and back again
For the past 200 years, fracture has been at the cutting edge of science.