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NASA’s James Webb Space Telescope receives first mirror installation

27 November 2015 Astronomy Now

NASA has successfully installed the first of 18 flight mirrors onto the James Webb Space Telescope — the successor to Hubble — beginning a critical piece of the observatory’s construction. Targeted for launch in 2018, the telescope’s 18 primary mirror segments will work together as one large 21.3-foot (6.5-metre) mirror.

News

Hubble observes chaotic dance of Pluto’s moons

4 June 2015 Astronomy Now

A comprehensive analysis of all available Hubble Space Telescope data shows that two of Pluto’s moons, Nix and Hydra, are wobbling unpredictably. Scientists believe the other two small moons, Kerberos and Styx, are likely in a similar situation, pending further study.