Choose two holes on the practice green that create contrasting conditions (uphill/downhill or sidehill). Putt back and forth between them, aiming to two-putt or better a set number of times in a row — ...

Distance records are an excellent proxy for the state of the art in astronomy. Finding extremely faraway galaxies is hard. In general, objects get smaller and fainter with distance (although bizarre ...

The cosmic distance ladder employs a series of methods to measure increasingly vast astronomical distances, with each technique building upon the previous one for verification. Parallax, using stellar ...