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Liquid methane rain feeds river channels, lakes, streams, and springs on the surface of Saturn's moon Titan, images from the Huygens probe show.


 landing Moon photography Titan Saturn methane Huygens rain
Newly released satellite images show how Katrina built up force over the sea before lashing the Louisiana coast. Warm waters in the Gulf of Mexico caused Katrina to strengthen into a category five hurricane. When she hit land, she slowed down, releasing huge amounts of rain. It was this, rather than her winds, that caused much of the damage.


 satellite rain weather Katrina hurricane New Orleans
Hurricane Katrina is pummelling New Orleans with howling gusts and blinding rain, after sweeping ashore over the southern Louisiana coast. The storm has knocked out power and submerged part of the low-lying city in up to 2m of rising water. Katrina has torn part of the roof of a stadium, where many sought refuge.


 rain Katrina hurricane New Orleans flooding
Authorities in Peru have ordered the airlift of nearly 2,000 tourists stranded by heavy rains in the country's top attraction, Machu Picchu. Days of heavy rains triggered up to 40 landslides, one of which blocked the railway connecting the Inca ruins with the city of Cuzco.


 Peru Machu Picchu rain flood train
Either there's a special machine that spits out silver iodide, dry ice or cement into the clouds, or a hatch opens and a guy with a shovel seeds the clouds manually.


 cloud snow meteorology weather drought Russia rain
The House of the Gladiators was found in ruins when curators came to open the site to visitors early on Saturday.


 Pompeii ancient Rome rain collapse archeology
A study of hailstones has found large numbers of bacteria at their cores. The find lends credence to the "bio-precipitation" idea, which suggests that bacteria are actively involved in stimulating precipitation. The bacteria have protein coatings that cause water to freeze at relatively warm temperatures.


 water bacteria microorganism precipitation rain snow ice freeze climate biology weather
A physicist has put forth new ideas in the long-running question of how best to keep dry when moving in the rain.


 rain physics wind angle mathematics