This week's question:

With regard to spacecraft, what does ADCS stand for?

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, July 17th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What are the four formal tracking station locations for LightSail 2? Latitude and longitude not required!

Answer:

The answer will be revealed next week.

Question from the June 13 space trivia contest:

What does the label of the Mini-DVD on LightSail 2 say? It contains the names of all Planetary Society members and others, along with selfies.

Answer:

Printed on the LightSail 2 Mini-DVD is “LightSail, Citizen Funded Flight by Light.”