Ask an Astronomer Team

Britt Scharringhausen

Britt studies the rings of Saturn. She got her PhD from Cornell in 2006 and is now a Professor at Beloit College in Wisconson.

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Title Created Date Hits
The Moon slows the Earth's rotation, but how fast was it spinning billions of years ago? (Intermediate) May 06 121695
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 89039
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 136874
Does the Moon rotate? (Beginner) Aug 04 91317
How can we tell what the interiors of planets are like? (Advanced) Jun 04 83793
How long has there been water on Earth? (Intermediate) Apr 04 95992
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 143152
How do unmanned space probes avoid running into things? (Beginner) Nov 03 77937
Why did the Pioneer and Voyager take only 2 years to reach Jupiter, while Galileo and Cassini took more than 5 years? (Intermediate) Nov 03 80241
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 63777
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 261332
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 70743
Why are Saturn's rings flat? (Intermediate) Dec 02 96710
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 108508
Will the Leonid meteor shower go away? (Beginner) Nov 02 59890
A line drawn perpendicular to a line through the tips of the horns of the crescent moon doesn't point to the Sun! Why not? (Advanced) Nov 02 68313
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 568892
What's that dark spot on the Sun? (Beginner) Aug 02 65361
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 128928
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 482778
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 318450
Can astronauts produce water in space? (Intermediate) Jun 02 75280
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 83728
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 1000743
Why are the compositions of comets and asteroids different? (Intermediate) May 02 68768
Who discovered each planet? (Intermediate) May 02 207224
How do we feel heat? (Intermediate) May 02 113026
How was the starting point for the Julian Date system chosen? (Advanced) May 02 75296
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 56904
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 56273
Why are stars and planets round? (Beginner) Feb 02 182034
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 130882
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 69984
How much money do astronomers make? (Intermediate) Jan 02 180056
What's the best college for astronomy? (Intermediate) Jan 02 109096
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 168467
What skills do astronomers need? (Beginner) Jan 02 122027
What's the best thing about being an astronomer? (Beginner) Jan 02 67556
What do I need to do to become an astronomer? (Beginner) Jan 02 190803
What kinds of jobs do astronomers do? (Intermediate) Jan 02 97074
What's the difference between astronomy and astrology? (Beginner) Jan 02 282212
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 142966

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