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Scientists shocked by mysterious deaths of ancient trees

Scientists shocked by mysterious deaths of ancient trees

Science
A tree regarded as the icon of the African savannah is dying in mysterious circumstances.International scientists have discovered that most of the oldest and largest African baobabs have died over the past 12 years.They suspect the demise may be linked to climate change, although they have no direct evidence of this.The tree can grow to an enormous size, and may live hundreds if not thousands of years.The researchers, from universities in South Africa, Romania and the US, say the loss of the trees is "an event of an unprecedented magnitude".Revealing the findings in the journal, Nature Plants, they say the deaths were not caused by an epidemic."We suspect that the demise of monumental baobabs may be associated at least in part wi...
Astronaut shocked after growing 9cm in space

Astronaut shocked after growing 9cm in space

Technology
A Japanese astronaut living on board the International Space Station has expressed his shock at growing 9cm (3.5in) since arriving in space three weeks ago.Lieutenant Norishige Kanai said on social media that he was concerned he wouldn't fit into the spacecraft that would return him to Earth.Lt Kanai, 41, was selected as an astronaut candidate by the Japan Aerospace Exploration Agency (JAXA) in 2009.He launched as JAXA's crew representative on Expedition 54 to the International Space Station (ISS) in December.Lt Kanai tweeted: "Good morning, everybody. I have a major announcement today. We had our bodies measured after reaching space, and wow, wow, wow, I had actually grown by as much as 9cm!"I grew like some plant in just three weeks. Nothing like this since high school. I'm a bit worried...