Join Donate

John Spencer

Use when no other thumbnail exists

John Spencer

Latest Planetary Radio Appearance

Rocketplanes, Space Yachts and New Space Geeks at SpaceUp!

February 13, 2012 • 0:28:50

Rocketplanes, Space Yachts and New Space Geeks at SpaceUp!

Latest Blog Posts

Less than 24 hours to New Horizons' Launch

January 16, 2006

New Horizons just experienced what we hope will be its last ever sunset on Earth. There will be three more sunsets to come.

astronaut on Phobos
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Mars
Every Mission Counts

Take action today and your gift will go twice as far to increase NASA budgets and advance space priorities.

Donate

You are here: