Our ability to make a fist and strike an opponent with sizable force might be an evolutionary trait.

Scientists have long maintained that our hands evolved to give us the manual dexterity needed to make and use tools, but now researcher David Carrier and his colleagues at the University of Utah have put forward the idea that our ability to punch may have also played an important role. To reach this conclusion the researchers carried out a series of bizarre experiments that involved swinging deceased human arms in to various punching targets in a laboratory.

A unique watch worn by astronaut David Scott during the Apollo 15 moon mission has been sold at auction. With its scratched face and wristband still covered in traces of chalky-white lunar dust, the historic timepiece has this week become the most expensive item of astronaut memorabilia in history after the winning bidder paid a whopping $1.6 million for it during the auction on Thursday night. "We are extremely pleased with the results and honored to have been able to offer such an historically important timepiece," said RR Auction's executive vice president Bobby Livingston.

Among the decisions I made, the monitoring of time was perhaps most important