A lost Nazi gold train was discovered in Poland. At least, that’s what a couple of treasure hunters told the world last year. Like all lost treasures, the search for this one had been going on for many years, usually without success. But...

People are fascinated by the unknown, by the possibility that there are things out there that are yet to be discovered.

We think that most of our planet has been mapped by satellites and continents have been thoroughly explored. Although scientists estimate that millions of species are yet to be discovered, these are mostly assumed to be very small...

Universities and schools around the world face constant pressure to find measures that demonstrate their impact on student learning. Most recently, they are devoting immense amounts of time, money and...