What Is Spacetime Really Made Of?
Spacetime may emerge from a more fundamental reality. Figuring out how could unlock the most urgent goal in physics—a quantum theory of gravity
Volume 326, Issue 2
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Features
Schoolkids Are Falling Victim to Disinformation and Conspiracy Fantasies
Although children are prime targets, educators cannot figure out how best to teach them to separate fact from fiction
Junk DNA Deforms Salamander Bodies
Yet the unfit creatures survive, challenging our long-held view of evolution
Rockshelter Discoveries Show Neandertals Were a Lot like Us
Our much maligned cousins made sophisticated ornaments and probably had language
A Psychedelic May Soon Go to the FDA for Approval to Treat Trauma
MDMA, known as Ecstasy in the clubs, gained high marks in a clinical trial for PTSD
How Immunocompromised People without Strong Vaccine Protection Are Coping with COVID
People with diseases or treatments that suppress their immune system cannot count on the same protection most vaccinated people have
People Who Jump to Conclusions Show Other Kinds of Thinking Errors
Belief in conspiracy theories and overconfidence are two tendencies linked to hasty thinking
Departments
Advances
Track New Zealand's Bid to Take Back Nature
Rubbing Up against Sharks May Feel Good despite the Danger
Holographic Camera Instantly Peeks around Obstacles
Arctic Krill Track Day and Night Even in Polar Darkness
Moon's Hidden Depths Uncovered with New Algorithm
Albatross 'Divorce' Rate Rises as the Ocean Warms
How the Brain Curbs Overeating
In Case You Missed It
Honeybees Social Distance to Prevent Disease, Too
Desert Plants' Adaptations Help Them Thrive
Gel-Based Sensor Continuously Monitors Wounds for Infection
Astronomy
Big Questions about Space, Time, Neandertals, Psychedelics and Reality
Policy
Readers Respond to the October 2021 Issue
The Right to Repair Should be Protected by Law
Education
Teaching about Racism Is Essential for Education
Quantum Physics
Poem: 'Elective Affinities: Ghazal of the Muon'
Health Care
A Faster Way to Find Good Medical Treatments Is Gaining Ground
Arts
A Reverse Journey through Geologic Time, a Tale of Wild Horses and Interspecies Kinship, and More
Climate Change
New Nuclear Power Plants Are Unlikely to Stop the Climate Crisis
How Climate Change Will Hit Younger Generations
History