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 113921
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 83906
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 125958
Does the Moon rotate? (Beginner) Aug 04 86687
How can we tell what the interiors of planets are like? (Advanced) Jun 04 77098
How long has there been water on Earth? (Intermediate) Apr 04 92301
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 126062
How do unmanned space probes avoid running into things? (Beginner) Nov 03 71757
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 74857
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 59512
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 257314
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 66263
Why are Saturn's rings flat? (Intermediate) Dec 02 90903
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 98049
Will the Leonid meteor shower go away? (Beginner) Nov 02 56092
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 63755
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 536508
What's that dark spot on the Sun? (Beginner) Aug 02 61630
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 122342
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 469968
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 276027
Can astronauts produce water in space? (Intermediate) Jun 02 69086
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 80273
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 951361
Why are the compositions of comets and asteroids different? (Intermediate) May 02 64362
Who discovered each planet? (Intermediate) May 02 187157
How do we feel heat? (Intermediate) May 02 103819
How was the starting point for the Julian Date system chosen? (Advanced) May 02 69845
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 52326
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 52424
Why are stars and planets round? (Beginner) Feb 02 174435
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 126680
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 65857
How much money do astronomers make? (Intermediate) Jan 02 176167
What's the best college for astronomy? (Intermediate) Jan 02 104349
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 162967
What skills do astronomers need? (Beginner) Jan 02 115928
What's the best thing about being an astronomer? (Beginner) Jan 02 63836
What do I need to do to become an astronomer? (Beginner) Jan 02 164509
What kinds of jobs do astronomers do? (Intermediate) Jan 02 94225
What's the difference between astronomy and astrology? (Beginner) Jan 02 252825
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 132229

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