Fighting for Space: Former NASA Deputy Administrator Lori Garver

She has spent most of her life working toward a bright future for humanity in space, and Lori Garver has lost none of her passion. She visited the Planetary Society for a wide-ranging conversation with Mat Kaplan. Join Emily Lakdawalla as we hear Juno enter the realm of Jupiter. Digital Editor Jason Davis takes us to the spectacular test of a vital Space Launch System rocket engine. Celebrating the 4^th of July in space with Bruce Betts.

Related Links:

• Lori Garver’s NASA Bio
• Juno’s First Taste of Science From Jupiter
• Big Booster Blasts Utah Hillside, and NASA Discusses Journey to Mars

This week's prizes are a Planetary Radio t-shirt, a Planetary Society rubber asteroid and a 200-point iTelescope.net astronomy account.

This week's question:

What is the total power output of Juno at the distance of Jupiter from the Sun?

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, July 12th at 8am Pacific Time. Be sure to include your name and mailing address.

Last week's question:

What is the ratio of the equatorial surface gravity of the Sun to the force or pull of gravity at the surface of the Earth? (We’ll define the “surface” of the Sun as the edge of the photosphere or visible surface.)

Answer:

The answer will be revealed next week.

Question from the week before:

What is the approximate ratio of the mass of Earth’s Moon to the mass of Pluto?

Answer:

The ratio of our moon’s mass to Pluto’s is about 5.6.