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 101348
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 75141
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 106174
Does the Moon rotate? (Beginner) Aug 04 78066
How can we tell what the interiors of planets are like? (Advanced) Jun 04 64883
How long has there been water on Earth? (Intermediate) Apr 04 85025
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 107325
How do unmanned space probes avoid running into things? (Beginner) Nov 03 62141
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 65858
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 51346
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 249234
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 57729
Why are Saturn's rings flat? (Intermediate) Dec 02 81041
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 85275
Will the Leonid meteor shower go away? (Beginner) Nov 02 50083
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 55808
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 470603
What's that dark spot on the Sun? (Beginner) Aug 02 55116
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 109374
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 448110
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 220854
Can astronauts produce water in space? (Intermediate) Jun 02 60541
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 73151
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 867277
Why are the compositions of comets and asteroids different? (Intermediate) May 02 57517
Who discovered each planet? (Intermediate) May 02 145318
How do we feel heat? (Intermediate) May 02 88838
How was the starting point for the Julian Date system chosen? (Advanced) May 02 61017
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 45202
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 45728
Why are stars and planets round? (Beginner) Feb 02 159958
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 117986
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 58344
How much money do astronomers make? (Intermediate) Jan 02 168430
What's the best college for astronomy? (Intermediate) Jan 02 96765
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 153321
What skills do astronomers need? (Beginner) Jan 02 104803
What's the best thing about being an astronomer? (Beginner) Jan 02 57562
What do I need to do to become an astronomer? (Beginner) Jan 02 145975
What kinds of jobs do astronomers do? (Intermediate) Jan 02 89074
What's the difference between astronomy and astrology? (Beginner) Jan 02 230513
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 113893

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