EVERY RAINY SEASON, THE CRISTALINO RIVER IN THE SOUTH OF THE AMAZON BASIN BURSTS ITS BANKS, ENABLING TRAVELLERS TO KAYAK THROUGH A FLOODED FOREST.

Planetary physicist Dr Sheila Kanani on why now is the time to spot shooting stars and a sunlit Saturn

Uri Geller has appeared in our newspapers, on our TV screens and in the pages of Fortean Times many times since he first burst onto the world stage in 1973 courtesy of a live appearance on The Dimbleb

Yes. On cosmic timescales, comets hit Earth frequently, but because they’re largely made of ice rather than solid rock, they tend not to leave obvious craters. A small comet is more likely than an asteroid to break up as it plunges into Earth’s atmosphere and heats up, often resulting in an explosion called an airburst that can devastate large areas of the landscape but doesn’t leave a crater. Perhaps the most famous such event happened over the Russian region of Tunguska in 1908, when an exploding comet flattened some 770 square miles of Siberian forest. A comet would have to be pretty big in order to hit the ground intact.

KNOWN AS ‘EUROPE’S RESERVOIR’, SWITZERLAND IS HOME TO MYRIAD LIQUID LANDSCAPES — FROM LIDOS AND ALPINE LAKES TO GLACIER-FED RIVERS AND WATERFALLS

IN CENTRAL BRAZIL, SAFARI DRIVES REVEAL THE WORLD’S MOST BIODIVERSE SAVANNAH, WHERE BLACK JAGUARS PROWL.