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 103454
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 76548
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 109632
Does the Moon rotate? (Beginner) Aug 04 79172
How can we tell what the interiors of planets are like? (Advanced) Jun 04 66689
How long has there been water on Earth? (Intermediate) Apr 04 86235
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 110301
How do unmanned space probes avoid running into things? (Beginner) Nov 03 63742
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 67060
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 52455
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 250714
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 58996
Why are Saturn's rings flat? (Intermediate) Dec 02 82390
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 86957
Will the Leonid meteor shower go away? (Beginner) Nov 02 50844
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 56956
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 479506
What's that dark spot on the Sun? (Beginner) Aug 02 55947
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 111678
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 452153
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 227426
Can astronauts produce water in space? (Intermediate) Jun 02 61678
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 74160
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 879736
Why are the compositions of comets and asteroids different? (Intermediate) May 02 58551
Who discovered each planet? (Intermediate) May 02 150152
How do we feel heat? (Intermediate) May 02 90843
How was the starting point for the Julian Date system chosen? (Advanced) May 02 62227
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 46126
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 46524
Why are stars and planets round? (Beginner) Feb 02 162331
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 119292
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 59364
How much money do astronomers make? (Intermediate) Jan 02 169751
What's the best college for astronomy? (Intermediate) Jan 02 97677
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 154975
What skills do astronomers need? (Beginner) Jan 02 106744
What's the best thing about being an astronomer? (Beginner) Jan 02 58503
What do I need to do to become an astronomer? (Beginner) Jan 02 148618
What kinds of jobs do astronomers do? (Intermediate) Jan 02 89741
What's the difference between astronomy and astrology? (Beginner) Jan 02 234085
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 116574

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