Fraternal sun
Our sun has a sibling. Astronomers say a star called HD 162826 was born in the same dust cloud as our own, because out of 30 potential siblings it is the most chemically similar to the sun and formed in the same neighbourhood of the Milky Way ().
Stem cells heal stroke
Eleven people disabled by stroke continue to improve a year after they received an injection of stem cells. Some can move limbs and manage tasks they could not previously handle, announced ReNeuron, the company behind the treatment, last week at the European Stroke Conference in Nice, France.
Google must forget you
Europe鈥檚 top court has ruled that Google must delete information from its search results in certain scenarios 鈥� a victory for people fighting for the 鈥渞ight to be forgotten鈥� online. The decision arose after a man requested the removal of links mentioning that a house he owned years ago was being auctioned because he had failed to pay taxes.
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Fusion postponed again
It was never going to be easy. ITER, the nuclear fusion reactor being built in Cadarache, France, may not fire up until 2023 鈥� seven years later than originally planned, the director-general has told New 杏吧原创. The difficulty of integrating parts from the project鈥檚 partners 鈥� including agencies in China, Russia, India, Japan, the US and the EU 鈥� make it unlikely that even the current 2020 deadline will be met, he says.
Penguins get flu, too
Even Antarctica isn鈥檛 free of bird flu. Penguins carry a strain, H11N2, which is unlike any other and may have been evolving in Antarctica for at least 50 years. The virus infects Ad茅lie penguins but does not appear to be particularly deadly or contagious (mBio, ).