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Breakthrough Listen searches new-found nearby planet Proxima b for signs of ET

8 November 2016 Astronomy Now

Breakthrough Listen, the 10-year, $100-million astronomical search for intelligent life beyond Earth launched in 2015 by Internet entrepreneur Yuri Milner and Stephen Hawking, has just announced its first observations of newly-discovered Earth-size planet Proxima b orbiting the nearest star to the Sun using the Parkes Radio Telescope in New South Wales, Australia.

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Oldest known planet-forming circumstellar disc discovered

22 October 2016 Astronomy Now

A group of citizen scientists and professional astronomers joined forces to discover an unusual hunting ground for exoplanets. They found a red dwarf, called AWI0005x3s, surrounded by the oldest known circumstellar disc — a 45-million-year-old primordial ring of gas and dust orbiting the star from which planets can form.

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Proxima Centauri might be more Sun-like than we thought

11 October 2016 Astronomy Now

Astronomers recently announced that the nearby star Proxima Centauri hosts an Earth-sized planet in its habitable zone. Proxima Centauri is a small, cool, red dwarf star only one-tenth as massive and one-thousandth as luminous as the Sun. However, new research shows that it is Sun-like in one surprising way: it has a regular cycle of starspots.