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 108624
Where do planetary rings come from, and what are they made of? (Beginner) Aug 05 80313
Is there oxygen in the atmospheres of other planets? (Intermediate) Aug 05 117775
Does the Moon rotate? (Beginner) Aug 04 82829
How can we tell what the interiors of planets are like? (Advanced) Jun 04 72027
How long has there been water on Earth? (Intermediate) Apr 04 89213
How fast does the Earth go at perihelion and aphelion? (Intermediate) Mar 04 118735
How do unmanned space probes avoid running into things? (Beginner) Nov 03 67318
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 70690
Why doesn't the hydrogen on Jupiter explode? (Intermediate) Sep 03 55883
What do astronauts eat in space? Can they grow food? (Beginner) Feb 03 254184
Why do spacecraft need heat shields coming back to Earth but not leaving? (Intermediate) Jan 03 62564
Why are Saturn's rings flat? (Intermediate) Dec 02 86631
How big a change in the Earth's orbit would be required to destroy all life? (Intermediate) Nov 02 92230
Will the Leonid meteor shower go away? (Beginner) Nov 02 53432
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 60273
What are the names of the earth, moon, sun, and solar system? (Beginner) Oct 02 506652
What's that dark spot on the Sun? (Beginner) Aug 02 58439
How can I calculate the position or path of the Sun for a given time and location? (Intermediate) Aug 02 117005
Does the Moon rotate? Are there other moons that always keep one face toward their planet? (Intermediate) Jul 02 460766
What would happen if an asteroid 10 kilometers across hit the Earth? (Beginner) Jul 02 247725
Can astronauts produce water in space? (Intermediate) Jun 02 65610
Did life originate on Earth, or did it come from somewhere else? (Intermediate) May 02 77024
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) May 02 913498
Why are the compositions of comets and asteroids different? (Intermediate) May 02 61350
Who discovered each planet? (Intermediate) May 02 168159
How do we feel heat? (Intermediate) May 02 97125
How was the starting point for the Julian Date system chosen? (Advanced) May 02 65891
Why is it called astronomy when all the other sciences end in -ology? (Beginner) May 02 48887
How does libration allow us to see more than 50% of the Moon? (Advanced) Apr 02 49320
Why are stars and planets round? (Beginner) Feb 02 168790
Did astronauts really go to the Moon, or is it a hoax? (Beginner) Feb 02 123001
How much time do astronomers spend looking through telescopes? (Beginner) Jan 02 62530
How much money do astronomers make? (Intermediate) Jan 02 173083
What's the best college for astronomy? (Intermediate) Jan 02 100984
What kind of schooling is necessary to become an astronomer? (Intermediate) Jan 02 158879
What skills do astronomers need? (Beginner) Jan 02 111466
What's the best thing about being an astronomer? (Beginner) Jan 02 61069
What do I need to do to become an astronomer? (Beginner) Jan 02 156157
What kinds of jobs do astronomers do? (Intermediate) Jan 02 91802
What's the difference between astronomy and astrology? (Beginner) Jan 02 243214
What's the difference between astronomy and astrophysics? (Intermediate) Jan 02 124289

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