Why Firelight May Have Driven Early Humans From Gestures to Speech
A new study suggests that the shift from gestural to spoken language may have been influenced by the limitations of communicating by firelight.
» readNASA’s Roman Space Telescope passes key test, aims for decade-spanning cosmic survey.
The first test image from NASA’s Roman Space Telescope has been released, showing hundreds of stars as green rings of light. After several more months of tuning, the telescope is expected to capture images as sharp as those from the Hubble Space…
» readRare Bundibugyo virus outbreak highlights gaps in global disease preparedness
A growing outbreak of the rare Bundibugyo virus in the Democratic Republic of Congo is drawing attention to a broader problem in global health: how to prepare for dangerous diseases that appear only rarely but can still cause deadly outbreaks.
» readHow the Sun’s Position Shifts Over a Year, Captured in a Single Image
A visual answer to how the Sun’s position changes when photographed at the same time each day is provided by an analemma, a composite image taken from the same spot at the same time over a year.
» readDNA computer uses competitive binding to reach energy-efficient answers
A new type of DNA computer has been designed to reach its correct answer by settling into an energetically favorable state, requiring less energy than other biological computers that integrate living cells with traditional hardware.
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