Previously answered questions by Sabrina Stierwalt
(in order of times viewed)
- Can we feel the Earth spin?
- How do rockets work?
- What do astronauts do all day in the International Space Station?
- Can moons have moons?
- Is the speed of light constant?
- What's the difference between dark matter and dark energy?
- Is the Moon seen as a crescent (and not a "boat") all over the world? Is the same phase of the moon visible from the Northern and Southern hemispheres?
- Why is the sky blue and not blue & purple?
- What is a wormhole?
- What can I use for fuel in my homemade rocket?
- What if the Earth rotated twice as fast?
- How do we determine the age of the universe?
- Why is Uranus tipped on its side?
- How are planets detected around other stars?
- What happens when an antimatter black hole collides with a matter blackhole?
- How are sunspots formed?
- Can a human give birth in space?
- How do photons from distant objects maintain enough energy to reach us?
- Could neutrinos be dark matter?
- What is Hot Dark Matter theory?
- Does lunar gardening really work?
- What do meteorites tell us about life on other planets?
- Can we harvest H & O from space to make water?
This page has been accessed 9609 times since January 14, 2013.
Last modified: November 19, 2007 11:28:35 AM
Ask an Astronomer is hosted by the Astronomy Department at Cornell University and is produced with PHP and MySQL.
Warning: Your browser is misbehaving! This page might look ugly. (Details)