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As marijuana use becomes more acceptable, researchers are scrambling to answer key questions about the drug.

When somebody asks you to recount an experience, it’s common to begin with the time and place. Were you married in Cancún or Canton? In July or January? Having this basic information is key to accessing more detailed memories, according to research from Ohio State University (OSU).

Weather-related crop disasters will become more likely with climate change, warns a detailed report released today by the Global Food Security (GFS) program, a network of public research funding agencies in the United Kingdom.

Artificial-intelligence researchers have long struggled to make computers perform a task that is simple for humans: picking out one person’s speech when multiple people nearby are talking simultaneously.

Duplication of copy number variants may be the source of greatest diversity among people, researchers find.

Researchers are uncovering the hidden laws that reveal how the Internet grows, how viruses spread, and how financial bubbles burst.

A series of experiments has produced incredible results by giving young blood to old mice. Now the findings are being tested on humans. Ian Sample meets the scientists whose research could transform our lives

Two years after physicists predicted that tin should be able to form a mesh just one atom thick, researchers say that they have made it. The thin film, called stanene, is reported on 3 August in Nature Materials. But researchers have not been able to confirm whether the material has the predicted exotic electronic properties…

The tree of life might seem like a stable design, appropriate for indelible ink. Plenty of people think so. An Internet search for “phylogenetic tattoos” turns up some showy skin art. But the branches are shifting. Since a radial diagram based on 1990s genetics inspired a rush for tree-of-life tattoos, technical diagrams of life’s ancestral…