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 99175
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 73620
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 102153
Does the Moon rotate? (Beginner) Aug 04 76871
How can we tell what the interiors of planets are like? (Advanced) Jun 04 63181
How long has there been water on Earth? (Intermediate) Apr 04 83537
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 104480
How do unmanned space probes avoid running into things? (Beginner) Nov 03 60472
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 64032
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 49860
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 247780
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 56078
Why are Saturn's rings flat? (Intermediate) Dec 02 79396
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 83053
Will the Leonid meteor shower go away? (Beginner) Nov 02 48938
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 54210
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 460929
What's that dark spot on the Sun? (Beginner) Aug 02 54088
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 107058
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 442603
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 215435
Can astronauts produce water in space? (Intermediate) Jun 02 59434
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 71900
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 855774
Why are the compositions of comets and asteroids different? (Intermediate) May 02 56369
Who discovered each planet? (Intermediate) May 02 141234
How do we feel heat? (Intermediate) May 02 86691
How was the starting point for the Julian Date system chosen? (Advanced) May 02 59652
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 44031
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 44609
Why are stars and planets round? (Beginner) Feb 02 157165
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 116304
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 57002
How much money do astronomers make? (Intermediate) Jan 02 166315
What's the best college for astronomy? (Intermediate) Jan 02 95430
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 150910
What skills do astronomers need? (Beginner) Jan 02 102413
What's the best thing about being an astronomer? (Beginner) Jan 02 56409
What do I need to do to become an astronomer? (Beginner) Jan 02 143121
What kinds of jobs do astronomers do? (Intermediate) Jan 02 88178
What's the difference between astronomy and astrology? (Beginner) Jan 02 226475
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 110611

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