Today, we bring you another focus challenge, in which we invite you to spend uninterrupted time looking at one piece of art.

How long is the Kentucky Derby? The race track at Churchill Downs for the Kentucky Derby is 1¼ miles in distance, the equivalent of 2,200 yards. Of the three Triple Crown races, ...

If dark energy is weakening, as suggested by recent results, then the cosmos is far stranger than most physicists had ...

Rather it arrived via the careful analysis of many far-distant galaxies, which revealed new details of the universe’s ...