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
Most Recent
- Do galaxies that are receding from us faster than the speed of light disappear from our observations? (Intermediate)
- Why are astronomers interested in gravitational waves? (Intermediate)
- Can two galaxies move away from each other faster than the speed of light? (Intermediate)
- What is a graviton? (Intermediate)
- Why are there high tides during a Full Moon? (Intermediate)
- Why is Neptune still considered a planet when Pluto crosses its orbit? (Intermediate)
- Could there be objects orbiting interior to Mercury? (Intermediate)
- Have the inner planets cleared their neighborhood? (Intermediate)
- What caused the Big Bang and created the Universe? (Beginner)
- If spacetime is curved, is it possible for us to look into space and see light from Earth from long ago? (Intermediate)
Editor's Pick
- What should I know about the upcoming Solar Eclipse? (2017)
- What is the universe expanding into? (Intermediate)
- What do I need to do to become an astronomer? (Beginner)
- What's the difference between astronomy and astrology? (Beginner)
- Why is looking out into space the same as looking back in time? (Beginner)
Most Popular
- When was the last time all of the planets were aligned? (Beginner)
- What color is each planet? (Intermediate)
- What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
- How far is each planet from Earth? (Intermediate)
- How do you measure the distance between Earth and the Sun? (Intermediate)
- At what speed does the Earth move around the Sun? (Beginner)
- What is the difference between a "star" and a "sun"? (Beginner)
- How does the location of sunrise and sunset change throughout the year? (Advanced)
- How does the position of Moonrise and Moonset change? (Intermediate)
- Why do airplanes take longer to fly West than East? (Intermediate)
- When was the last time all of the planets were aligned? (Beginner)
- What color is each planet? (Intermediate)
- What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
- How far is each planet from Earth? (Intermediate)
- How do you measure the distance between Earth and the Sun? (Intermediate)
- At what speed does the Earth move around the Sun? (Beginner)
- What is the difference between a "star" and a "sun"? (Beginner)
- How does the location of sunrise and sunset change throughout the year? (Advanced)
- Why do the planets orbit the sun? (Beginner)
- How are light and heavy elements formed? (Advanced)
- Why are the Moon and Sun sometimes orange or red? (Beginner)
- When was the last time all of the planets were aligned? (Beginner)
- What color is each planet? (Intermediate)
- What is the significance of the Tropic of Cancer, Tropic of Capricorn, Arctic Circle and Antarctic Circle? (Beginner)
- How far is each planet from Earth? (Intermediate)
- How do you measure the distance between Earth and the Sun? (Intermediate)
- At what speed does the Earth move around the Sun? (Beginner)
- What is the difference between a "star" and a "sun"? (Beginner)
- Why do the planets orbit the sun? (Beginner)
- Why do airplanes take longer to fly West than East? (Intermediate)
- 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)
- How long does it take for the Sun's light to reach us? (Beginner)
- What is the universe expanding into? (Intermediate)
- When will Halley's Comet return? (Intermediate)
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