In July 2009, a mysterious large object crashed into Jupiter, the largest planet in the solar system, leaving behind a scar in the gas cloud the size of the Earth. Sir Patrick Moore examines this new feature with Jupiter experts John Rogers and David... (more) Rothery. Imaging experts Pete Lawrence and Paul Abel compete to capture the best images of the gas giant, while Chris Lintott has this month's news notes.

John Rogers, David Rothery