The radioactive ununpentium (a temporary name meaning «one - one - five») existed for only a fraction of a second before decaying into other elements. (discovermagazine.com)
The new moon, which showed up as a tiny speck in images taken by the Hubble Space Telescope, is 10 to 25 kilometres across and has the temporary name of P5. (newscientist.com)
Astronomer Mike Brown, who discovered both objects in 2005, gave them their temporary names and their new names. (sciencenewsforstudents.org)