July 21, 2017

57: The smallest star ever discovered

57: The smallest star ever discovered

The world's premiere astronomy and space science news podcast


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*The smallest star ever discovered Astronomers have identified what could be the smallest star ever discovered. The star -- called EBLM J0555-57Ab -- was detected in a triple star system located some 600 light years away in the Southern Hemisphere constellation Pictor the painter. 

*New brown dwarf discovered Citizen scientists have helped NASA identify a never before seen Brown Dwarf. The discovery is the first was made as part of NASA’s Backyard Worlds: Planet 9 citizen science project. 

*Why black holes only come two sizes A new study may have finally answered a question which has been puzzling astronomers and physicists for half a century – namely why black holes only seem to come in two sizes -- stellar mass and supermassive. What’s happened to all the intermediate-sized black holes – those with a few thousand times the Sun’s mass. Now a new study has come up with a possible answer – time. 

*Strange signals from outer space Astronomers at the Arecibo radio telescope in Puerto Rico have detected strange signals originating from a nearby star system. The mysterious radio signals appear to be coming from Ross 128 a small red dwarf star about 11 light years away. 

*The Larsen C trillion tonne iceberg A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica. The 5800 square kilometre chunk of ice – now named A68 – is twice the size of the Australian Capital Territory, as large as the US state of Delaware and contains twice the volume of Lake Erie, one of the Great Lakes. 

*SpaceX launches its heaviest geostationary orbital payload yet A SpaceX Falcon 9 rocket has successfully launched the heaviest payload ever carried by the company into geostationary orbit. The 6070 kilogram Inmarsat-5 F4 telecommunications satellite is at the top end of the Falcon 9’s lift capabilities.. 

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