Ask an Astronomer Team
Kristine Spekkens
Kristine studies the dynamics of galaxies and what they can teach us about dark matter in the universe. She got her Ph.D from Cornell in August 2005, was a Jansky post-doctoral fellow at Rutgers University from 2005-2008, and is now a faculty member at the Royal Military College of Canada and at Queen's University.
Kristine's websites:
http://www.astro.queensu.ca/people/Kristine_Spekkens/main.php
http://www.rmc.ca/aca/phy/per/spekkens-k-eng.php
Random Question
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- If I were hypothetically wearing a spacesuit and sitting on one of the Voyager space probes at their current positions in space, how much light would I have? (Intermediate)
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- What will happen to Earth's tides as the moon moves away from us? (Intermediate)
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Editor's Pick
- What is the universe expanding into? (Intermediate)
- What do I need to do to become an astronomer? (Beginner)
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Most Popular
- What color is each planet? (Intermediate)
- Why do the planets orbit the sun? (Beginner)
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- At what speed does the Earth move around the Sun? (Beginner)
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- How far is each planet from Earth? (Intermediate)
- How do you measure the distance between Earth and the Sun? (Intermediate)
- What color is each planet? (Intermediate)
- Why are the Moon and Sun sometimes orange or red? (Beginner)
- At what speed does the Earth move around the Sun? (Beginner)
- What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
- Why do the planets orbit the sun? (Beginner)
- How far is each planet from Earth? (Intermediate)
- How do you measure the distance between Earth and the Sun? (Intermediate)
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- Are there telescopes that can see the flag and lunar rover on the Moon? (Beginner)
- Is the Moon moving away from the Earth? When was this discovered? (Intermediate)
- What color is each planet? (Intermediate)
- How far is each planet from Earth? (Intermediate)
- At what speed does the Earth move around the Sun? (Beginner)
- What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
- Why do the planets orbit the sun? (Beginner)
- Are there telescopes that can see the flag and lunar rover on the Moon? (Beginner)
- How do you measure the distance between Earth and the Sun? (Intermediate)
- What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner)
- What is the difference between a "star" and a "sun"? (Beginner)
- Why do stars twinkle? (Beginner)
- What's going to happen on December 21st 2012? (Intermediate)
- What color is each planet? (Intermediate)
- At what speed does the Earth move around the Sun? (Beginner)
- How far is each planet from Earth? (Intermediate)
- Is the Moon moving away from the Earth? When was this discovered? (Intermediate)
- How do you measure the distance between Earth and the Sun? (Intermediate)
- Why do the planets orbit the sun? (Beginner)
- What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
- When was the last time all of the planets were aligned? (Beginner)
- How long does it take for the Sun's light to reach us? (Beginner)
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