Crowd gathers for 'a million-man march' in Tahrir, Cairo.

Volcanic smoke rises from the crater on Mount Shinmoedake in Kyushu, Japan.

Space shuttle Discovery on it's way to the launch pad at the Kennedy Space Center in Cape Canaveral, Florida.

An effigy of Hosni Mubarak hangs while perople demonstrate in Tahrir, in Cairo, Egypt.

Toro Rosso F1 racers Sebastien Buemi and Jaime Alguersuari next to the Red Bull F1 car during the official presentation of the Toro Rosso F1 Team 2011 at the Ricardo Tormo race track in Cheste, near Valencia Spain.