writes: The BBC report that planetary scientist Professor Colin Pillinger, best known for his involvement in Britain's Beagle 2 Mars mission, has died aged 70.
Prof Pillinger was the driving force behind the ultimately doomed Mars lander, and was awarded a CBE in 2003.
His spokesman said he suffered a brain haemorrhage at his home in Cambridge and later died in hospital.
writes: Of the nearly 11,000 silent films made between 1912 and 1930, only 14% still exist in their original format, Library of Congress research has found.
And 11% of those that survive only exist as foreign versions or on lower-quality formats, meaning an original 20th century art form has all but disappeared.
Silent films were at their peak between in the early part of the century when — before network radio or television — going to the cinema was the most popular form of entertainment.
Famous films now considered lost include Cleopatra from 1917, The Great Gatsby from 1926, Lon Chaney's London After Midnight from 1927, and The Patriot from 1928.
Librarian of Congress James Billington says "The loss of American silent-era feature films constitutes an alarming and irretrievable loss to our nation's cultural record."
writes: A year after veteran presenter Sir Patrick Moore died, the BBC are discussing pulling this iconic programme. This has unleashed a torrent of criticism from fans of the monthly science-based astronomy show. There is an on-line petition for those who want to have their say.