The world's first mechanical clocks were tower clocks built in Europe around 1270 to 1300 during the renaissance period. These clocks did not yet have dials or hands but told the time by striking ...

The experts who maintain the ominous Doomsday Clock said Tuesday that humanity is still as close as ever to global catastrophe, which could involve nuclear war, climate change, or maybe even ...

People attend the protest against the ongoing war in Ukraine and the war policy of the Japanese Government in Hiroshima, Japan on August 6, 2023. As the clock struck midnight on Nov. 7 in Moscow, the ...

Cyanobacteria, an ancient lineage of bacteria that perform photosynthesis, have been found to regulate their genes using the same physics principle used in AM radio transmission. Cyanobacteria, an ...