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• If it's a meteorite on earth, what is it on the moon?

  Asked by 6rant6 | 6 responses

• Under what conditions would polonium 210 (Po-210) start a nuclear reaction?

  Asked by radcliff | 5 responses

• Would you like to see the Venus transit today?

  Asked by Rarebear | 7 responses

• Why do you suppose that we find the transit of Venus exciting?

  Asked by thorninmud | 14 responses

• The transit of Venus tomorrow; worthwile to get my telescope out of its box?

  Asked by rebbel | 12 responses

• How do you think Sedna got its weird orbit?

  Asked by ETpro | 21 responses

• Are you planing to watch the transit of Venus across the surface of the sun on June 5?

  Asked by gailcalled | 11 responses

• How many moons does planet Earth really have?

  Asked by Pied_Pfeffer | 25 responses

• How are particle accelerators created from radiowave frequency?

  Asked by radcliff | 9 responses

• Will you be watching the annular solar eclipse on Sunday, May 20?

  Asked by gailcalled | 16 responses

• What if your human eyes did not reflect light?

  Asked by radcliff | 4 responses

• How could a human eye become an Optical Black Hole?

  Asked by radcliff | 12 responses

• If someone found a black hole, who would you call to test and verify that it really was one?

  Asked by radcliff | 11 responses

• Are you ready for Cinco de Mayo, Cinco Day Drinko, the Kentucky Derby and the Super Moon, all in one day?

  Asked by jca | 36 responses

• When is the last time a Super Moon fell on May 5th?

  Asked by Blondesjon | 6 responses

• Does the axis of the solar system line up with the Milky Way, or is it more generally perpendicular?

  Asked by Nullo | 4 responses

• Astronomy fans anyone traveling to Coloma Ca. to search for the Lyrid meteor fragments?

  Asked by Coloma | 37 responses

• Can someone explain like I'm 5 years old how the sun works (details)?

  Asked by Blackberry | 14 responses

• What are some examples of citizen science websites that produce live results?

  Asked by coelacanth | 6 responses

• What could this robot be thinking now?

  Asked by mazingerz88 | 11 responses

• Realistically, what would happen if we knew the world was going to end in ten years?

  Asked by deni | 24 responses

• What am I seeing in the sky every night?

  Asked by El_Cadejo | 26 responses

• What does this mean? Vere scire est per causas scire?

  Asked by auhsojsa | 3 responses

• Why is it people feel weird during full moons ?

  Asked by partyrock | 23 responses

• Does the universe make atheists, or do atheists gravitate to the universe?

  Asked by ANef_is_Enuf | 22 responses

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