Three’s a crowd
The North Star, aka Polaris, is actually a triple star system, and the Hubble Space Telescope has imaged the third star for the first time. It has been known since 1780 that Polaris was at least a binary. The third star had been inferred from the motion of the main pair, Polaris A, and was spotted 3.2 billion kilometres from Polaris A, astronomers announced on Monday.
Fears for wolves
Many of Idaho’s 500 wolves could be killed under new arrangements for managing the animals, a conservation group has warned. On 5 January, control of the state’s wolf population switched from the federal to…
