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 96716
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 71738
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 97929
Does the Moon rotate? (Beginner) Aug 04 75661
How can we tell what the interiors of planets are like? (Advanced) Jun 04 61417
How long has there been water on Earth? (Intermediate) Apr 04 82346
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 101605
How do unmanned space probes avoid running into things? (Beginner) Nov 03 58829
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 62424
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 48593
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 246399
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 54342
Why are Saturn's rings flat? (Intermediate) Dec 02 77667
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 81056
Will the Leonid meteor shower go away? (Beginner) Nov 02 47992
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 52922
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 448607
What's that dark spot on the Sun? (Beginner) Aug 02 53033
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 104138
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 436219
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 209320
Can astronauts produce water in space? (Intermediate) Jun 02 58452
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 70704
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 844562
Why are the compositions of comets and asteroids different? (Intermediate) May 02 55356
Who discovered each planet? (Intermediate) May 02 136029
How do we feel heat? (Intermediate) May 02 84410
How was the starting point for the Julian Date system chosen? (Advanced) May 02 58208
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 42967
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 43574
Why are stars and planets round? (Beginner) Feb 02 154290
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 114646
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 55872
How much money do astronomers make? (Intermediate) Jan 02 164202
What's the best college for astronomy? (Intermediate) Jan 02 94211
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 148408
What skills do astronomers need? (Beginner) Jan 02 100403
What's the best thing about being an astronomer? (Beginner) Jan 02 55399
What do I need to do to become an astronomer? (Beginner) Jan 02 139958
What kinds of jobs do astronomers do? (Intermediate) Jan 02 87239
What's the difference between astronomy and astrology? (Beginner) Jan 02 222153
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 107147

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