Charlie Summers / The transit of Venus across the face of the sun, with visible sunspots, as seen from Aurora, Colorado, USA, 19.51 local time, 5 June 2012.

Mark Taylor / Transit of Venus across the sun, partially obscured by clouds, Surrey, UK, 6th June 2012

Charlie Summers / The transit of Venus across the face of the sun, with visible sunspots, as seen from Aurora, Colorado, USA, 16.24 local time, 5 June 2012.

Charlie Summers / The transit of Venus across the face of the sun, with visible sunspots, as seen from Aurora, Colorado, USA, 18.01 local time, 5 June 2012.

Juergen Freund / Transit of the planet Venus acros the Sun, projected onto hand, Cairns, North Queensland, Australia, 11:41 local time, 6 June 2012.

Juergen Freund / Transit of the planet Venus acros the Sun, taken from Cairns, North Queensland, Australia, image taken with use of a BAADER filter, 09.43 local time, 6 June 2012.

Charlie Summers / The transit of Venus across the face of the sun, with visible sunspots, as seen from Aurora, Colorado, USA, 19.49 local time, 5 June 2012.

Charlie Summers / The transit of Venus across the face of the sun, with visible sunspots, as seen from Aurora, Colorado, USA, 16.33 local time, 5 June 2012.

Oriol Alamany / Transit of the planet Venus acros the Sun, image taken from Barcelona, Spain, 06.38, 6 June 2012.

Oriol Alamany / Transit of the planet Venus acros the Sun, image taken from Barcelona, Spain, 06.36, 6 June 2012.

Bryan and Cherry Alexander / Truck moving fish house to better site on the lake. Mille Lacs Lake, Minnesota, USA, 1985.

Onne van der Wal / A yacht being transported overland on a trailer pulled by a red jeep, Cape Cod, Massachusetts, USA.

Onne van der Wal / A yacht being transported overland on a trailer pulled by a red jeep, Cape Cod, Massachusetts, USA.

Erwan Quéméré / Eric Tabarly's yacht "Pen Duick" being transported on a truck by road. Pen Duick is 15.10m long with a beam of 2.93m with a 10 ton displacement.