Ring around Tabby's star

This illustration shows a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian's Star or Tabby's Star. The star has experienced unusual dips in brightness over a matter of days, as well as much subtler ...

Proba-3 will use laser for millimeter precision in space

ESA's double-spacecraft precision formation flying mission, Proba-3, is due to be launched from India on 4 December. The spacecraft pair will employ a set of positioning technologies to keep formation in space and this image ...

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