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 120042
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 87924
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 135046
Does the Moon rotate? (Beginner) Aug 04 90198
How can we tell what the interiors of planets are like? (Advanced) Jun 04 82296
How long has there been water on Earth? (Intermediate) Apr 04 94967
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 138246
How do unmanned space probes avoid running into things? (Beginner) Nov 03 76271
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 78592
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 62541
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 260283
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 69656
Why are Saturn's rings flat? (Intermediate) Dec 02 95035
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 106381
Will the Leonid meteor shower go away? (Beginner) Nov 02 58744
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 67034
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 564947
What's that dark spot on the Sun? (Beginner) Aug 02 64293
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 127348
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 479672
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 307755
Can astronauts produce water in space? (Intermediate) Jun 02 73818
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 82720
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 989949
Why are the compositions of comets and asteroids different? (Intermediate) May 02 67556
Who discovered each planet? (Intermediate) May 02 204900
How do we feel heat? (Intermediate) May 02 110912
How was the starting point for the Julian Date system chosen? (Advanced) May 02 73929
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 55867
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 54973
Why are stars and planets round? (Beginner) Feb 02 180356
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 129525
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 68774
How much money do astronomers make? (Intermediate) Jan 02 178886
What's the best college for astronomy? (Intermediate) Jan 02 107579
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 166967
What skills do astronomers need? (Beginner) Jan 02 120313
What's the best thing about being an astronomer? (Beginner) Jan 02 66788
What do I need to do to become an astronomer? (Beginner) Jan 02 183491
What kinds of jobs do astronomers do? (Intermediate) Jan 02 96354
What's the difference between astronomy and astrology? (Beginner) Jan 02 274383
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 140277

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