This week's question:

Where in the solar system is a feature named Dogana?

To submit your answer:

Complete the contest entry form at http://planetary.org/radiocontest or write to us at [email protected] no later than Wednesday, June 19th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What is the alloy that the LightSail 2 booms are made of? These long booms pull the sections of the solar sail out of the body of the spacecraft.

Answer:

The answer will be revealed next week.

Question from the May 30 space trivia contest:

What is the brightest pulsar as seen from Earth at radio wavelengths?

Answer:

The brightest pulsar in the sky as seen from Earth at radio wavelengths is Vela.