11.   Our first whale sighting.

12.   Our first major sighting of glaciers brought both excitement and a slight disappointment.

13.   Ramadan begins in the ninth month of the Islamic calendar, and is marked by the first sighting of the crescent moon.

14.   The catch is that while some investors want blood, they will probably flee at the first sighting.

15.   The first confirmed sighting of a planet outside the solar system was announced by a Swiss team only three months ago.

16.   The first sighting of a frozen mouse is usually enough to make the blood boil.

17.   The first sightings in the distance are just a glimmer of a black tail fluke sparkling in the sun, or mist left by a blow.

18.   The first sighting of this handy little device was not in Boston or Silicon Valley.

19.   The first sightings of the brown dwarf were made a year ago by astronomers from Caltech and Johns Hopkins University in Baltimore.

20.   The start of the holy month depends on the first sighting of the crescent moon by Muslim learned men or religious leaders.