Scientists are beginning to understand the extent to which the evolution of our planet has been shaped by collisions, bombardments and catastrophes. John Baez tells the violent hist...
Born 200 years ago, Charles Darwin is rightly celebrated for his work explaining the origin of species. But in setting a new standard for what an explanation of nature should be like, he also had a hu...
Some instruments in teaching laboratories may look old-fashioned, but those wooden boxes can hold surprisingly advanced equipment. George Herold describes his career designing exper...
The job market for new graduates and career-changers in 2009 is not great, but physicists may be better equipped than most, as Margaret Harris explains
Many cosmological theories not only see our universe as one of many but also claim that time does not exist. Lee Smolin argues against the timeless multiverse