Recent contributions:

9 Dec 2009

• Wrote the first answer to What is the name given to the scientific theory about the evolution of the universe
  Science | Astronomy | Evolution  •   9 Dec 2009 00:48

28 Oct 2009

• Wrote the first answer to Who provided the first evidence that the universe is expanding
  Astronomy | Physics  •  28 Oct 2009 23:31

27 Jan 2009

• Wrote the first answer to Which region of the world has no seasons
  Continents and Regions | Seasons  •  27 Jan 2009 10:27
• Wrote the first answer to How is a planet affected by its star and moon
  Planetary Science  •  27 Jan 2009 10:23