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 88393
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 66210
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 82021
Does the Moon rotate? (Beginner) Aug 04 71062
How can we tell what the interiors of planets are like? (Advanced) Jun 04 54907
How long has there been water on Earth? (Intermediate) Apr 04 77221
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 90358
How do unmanned space probes avoid running into things? (Beginner) Nov 03 52739
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 56778
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 44126
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 241556
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 47271
Why are Saturn's rings flat? (Intermediate) Dec 02 71508
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 73943
Will the Leonid meteor shower go away? (Beginner) Nov 02 44203
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 48191
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 409006
What's that dark spot on the Sun? (Beginner) Aug 02 49160
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 95930
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 404587
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 183409
Can astronauts produce water in space? (Intermediate) Jun 02 54404
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 66454
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 803446
Why are the compositions of comets and asteroids different? (Intermediate) May 02 51376
Who discovered each planet? (Intermediate) May 02 121035
How do we feel heat? (Intermediate) May 02 76461
How was the starting point for the Julian Date system chosen? (Advanced) May 02 53341
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 38841
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 39500
Why are stars and planets round? (Beginner) Feb 02 143542
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 108092
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 51667
How much money do astronomers make? (Intermediate) Jan 02 156178
What's the best college for astronomy? (Intermediate) Jan 02 89447
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 138560
What skills do astronomers need? (Beginner) Jan 02 92864
What's the best thing about being an astronomer? (Beginner) Jan 02 50907
What do I need to do to become an astronomer? (Beginner) Jan 02 129325
What kinds of jobs do astronomers do? (Intermediate) Jan 02 83862
What's the difference between astronomy and astrology? (Beginner) Jan 02 207247
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 96214

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