Science/Nature

Rocket rumbles give volcanic insights

Image caption An “upside down volcano” (L) and an “upside down rocket” (R) What do volcanoes and rockets have in common? “Volcanoes have a nozzle aimed at the sky, and rockets have a nozzle aimed at the ground,” explains Steve McNutt, a geosciences professor at the University of South Florida in Tampa. It explains why […]

Science/Nature

Sumatran rhino 'hanging on by a thread'

Image copyright Tom Uhlman Image caption Ipuh at the Cincinnati Zoo Scientists have decoded the genome of the Sumatran rhinoceros – one of the most threatened mammals on Earth. Its genetic blueprint shows that populations have been in decline for a very long time. The rhino’s troubles began during the last Ice Age, when its […]

Science/Nature

Star system has record eight exoplanets

Image copyright NASA Image caption Artwork: The Kepler telescope was launched to detect new worlds using the “transit method” Nasa has found a distant star circled by eight planets, equal to the complement in our own Solar System. It’s the largest number of worlds ever discovered in a planetary system outside our own. The star […]

Science/Nature

Hurricane Harvey rainfall 'weighed 127bn tonnes'

Media playback is unsupported on your device Media captionRoads turned to rivers across Houston as Harvey hit Scientists have weighed the water that fell on Texas during the record-breaking Hurricane Harvey in August. They calculate, by measuring how much the Earth was compressed, that the Category 4 storm dropped 127 billion tonnes, or 34 trillion […]

Science/Nature

How Greenland would look without its ice sheet

Media playback is unsupported on your device Media captionThe map reveals a hidden world of mountains and canyons Scientists have produced a stunning visualisation of Greenland – without its ice cover. It is made from decades of survey data that show the position and shape of the territory’s bedrock, and the surrounding seafloor. This is […]

Science/Nature

Warmer Arctic is the 'new normal'

Image caption Sea ice that is more than four years old has largely disappeared in the Arctic A warming, rapidly changing Arctic is the “new normal” and shows no signs of returning to the reliably frozen region of the past. This is according to the US National Oceanic and Atmospheric Administration’s Arctic Report Card. Director […]