The best from the science journals: Bees of the world, Unite!

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Here is some of the most interesting research to have appeared in top science journals last week

(Subscribe to Science For All, our weekly newsletter, where we aim to take the jargon out of science and put the fun in. Click here.)The mystery of the Blue Ring NebulaPublished in Nature
 In 2004, scientists spotted a strange object in our Milky Way galaxy: a gaseous blob with a star at the centre. NASA’s space-based Galaxy Evolution Explorer captured the object in UV light, thus appearing blue in images and giving it the nickname Blue Ring Nebula. After several years of study, researchers have now decoded what this cloud of gas was. They write that it may be made up of debris from two stars that collided and merged to become a single star.A bee mapPublished in Current Biology”People think of bees as just honey bees, bumble bees, and maybe a few others, but there are more species of bees than of birds and mammals combined,” says Dr. John Ascher from the National University of Singapore in a release. His team has now published a complete map of 20,555 bee species describing their distribution and diversity across the globe.Sleep …

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