The smallest time interval ever defined. Named after theoretical physicist Max Planck (1858-1947), Planck time is 10-43 seconds; however, the only measurement ever actually made was more than twice as ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. After hunting for the earliest clues about the evolution of the universe for more than four years ...

Fermilab scientists have been conducting experiments to look for quantum fluctuations of space and time at the smallest scale imaginable according to known physics. At this limit, the Planck length, ...

ON A human scale, an atom is inconceivably small. But size is relative. On the Planck scale—the smallest that physical theory recognises—atoms are huge. At this scale, named after Max Planck, the ...

Scientists have traced a unique new map of the first light of the universe, and raised profound questions about the Big Bang. The image of the cosmic microwave background they have released was taken ...

An artist's illustration of the Planck spacecraft, a European Space Agency probe designed to study the Cosmic Microwave Background (CMB) – the relic radiation from the Big Bang. It mapped the ...