John Spencer head shot

John Spencer

President and Founder, Space Tourism Society

Latest Articles

Hooray! Cassini's tour has been extended for SEVEN MORE YEARS!

NASA has just announced that once Cassini's Equinox Mission runs out in June of this year, they will extend it a further seven more years, long enough for the spacecraft to see Saturn through its solstice!!

Mysteries, Small and Large

Mysteries, Small and Large

Aloha, Io

Taking a look at Jupiter's moon, Io, from Hawaii.

Latest Planetary Radio Appearances

New Horizons Flyby: Join the Celebration!

Join us at the Applied Physics Lab in Maryland for the New Horizons encounter with the most distant object ever visited. You’ll meet mission leaders, friends and even a rock and roll star as we dive deep into this triumph of exploration.

Rocketplanes, Space Yachts and New Space Geeks at SpaceUp!

Rocketplanes, Space Yachts and New Space Geeks at SpaceUp!

Flying Through the Geysers of Enceladus

Flying Through the Geysers of Enceladus