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This week's prizes are the Year in Space Wall and Desk Calendars AND a stylish Planetary Radio t-shirt!

This week's question:

What is the diameter of the largest Deep Space Network antennas?

To submit your answer:

Complete the contest entry form at http://planetary.org/radiocontest or write to us at [email protected] no later than Tuesday, February 17 at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What are the proper names of the two stars in Ursa Major (The Big Dipper) that point to the North Star?

Answer:

The answer will be revealed next week.

Question from the week before:

Ceres, Pallas and Vesta are the largest asteroids. What is the fourth largest asteroid?

Answer:

The fourth largest of the asteroids is Hygiea, discovered in 1849.