Related topics: astronomy, physics, science, space

• How do we know the universe is infinite?

  Asked by The_Compassionate_Heretic from iPhone | 30 responses

• What happens with the energy in you after you die?

  Asked by Christian95 | 23 responses

• How do we know that all we see is real?

  Asked by Christian95 | 47 responses

• What do you think about Joao Magueijo's variate speed of light concept?

  Asked by Christian95 | 9 responses

• Can you steer me in the right direction for my graduation project?

  Asked by Parrappa | 13 responses

• Best physics/astrophysics book?

  Asked by Christian95 | 5 responses

• Why E=mc2?

  Asked by Christian95 | 29 responses

• Do you think that today's physics are right?

  Asked by Christian95 | 46 responses

• What exactly happens when a (hypothetical) antimatter black hole merges with a 'normal' black hole?

  Asked by mattbrowne | 10 responses

• Does anybody have weird superstitions about solar eclipses?

  Asked by Christian95 | 15 responses

• How do you feel about the 40th anniversary of moon landings?

  Asked by Christian95 | 74 responses

• A colorful variety: white dwarfs, yellow dwarfs, orange dwarfs, red dwarfs, brown dwarfs, black dwarfs, red giants, blue supergiants - What is your favorite object in the night sky?

  Asked by mattbrowne | 19 responses

• When we harness tidal energy from the moon, what energy source is depleted?

  Asked by ben | 34 responses

• Best website for learning astronomy?

  Asked by advilicious | 6 responses

• Do you believe manned space exploration should continue?

  Asked by Marina | 24 responses

• What if two Blackholes came into contact?

  Asked by xxporkxsodaxx | 17 responses

• If the universe is infinite than how can it be expanding?

  Asked by xxporkxsodaxx | 20 responses