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 84562
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 63714
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 76624
Does the Moon rotate? (Beginner) Aug 04 69250
How can we tell what the interiors of planets are like? (Advanced) Jun 04 52267
How long has there been water on Earth? (Intermediate) Apr 04 75049
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 85411
How do unmanned space probes avoid running into things? (Beginner) Nov 03 50474
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 54379
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 42133
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 239453
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 44955
Why are Saturn's rings flat? (Intermediate) Dec 02 68986
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 70615
Will the Leonid meteor shower go away? (Beginner) Nov 02 42397
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 46008
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 393567
What's that dark spot on the Sun? (Beginner) Aug 02 47601
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 92208
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 395267
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 174509
Can astronauts produce water in space? (Intermediate) Jun 02 52613
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 64645
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 783977
Why are the compositions of comets and asteroids different? (Intermediate) May 02 49497
Who discovered each planet? (Intermediate) May 02 114256
How do we feel heat? (Intermediate) May 02 73047
How was the starting point for the Julian Date system chosen? (Advanced) May 02 51506
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 37127
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 37750
Why are stars and planets round? (Beginner) Feb 02 139031
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 105368
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 49708
How much money do astronomers make? (Intermediate) Jan 02 153084
What's the best college for astronomy? (Intermediate) Jan 02 87253
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 134370
What skills do astronomers need? (Beginner) Jan 02 89765
What's the best thing about being an astronomer? (Beginner) Jan 02 49090
What do I need to do to become an astronomer? (Beginner) Jan 02 122614
What kinds of jobs do astronomers do? (Intermediate) Jan 02 82376
What's the difference between astronomy and astrology? (Beginner) Jan 02 197701
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 91502

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