The Discussion: Professor Michelle Dougherty talking Enceladus at the annual Schrodinger lecture, the proficiency (or otherwise) of making science accessible to the layman and emails about inspiring anyone to do the job they want.

The News: Rounding up the space exploration news this month we have:

• Have SpaceX paved the way for the US to return to human spaceflight?
• The Japanese Hyabusa spacecraft begins exploring asteroid Ryugu
• The first Israeli lunar lander makes its way to the moon
• Virgin Galactic take a long awaited return to commercial spaceflight tests
• NASA's science experiments for the moon on their commercial landers
• Ultima Thule actually resembles a bag of Revels.

Main news story: New Horizons at Ultima Thule

The Debate: We want you to influence the next few debates. We want you to email us with what you think is the greatest space mission of all time (crewed or robotic). We'll compile a Top Ten and advocate for your choices, court-style, on the coming shows.

Q&A: Listeners' questions via email, Facebook & Twitter take us on a journey into the astronomy issues that have always plagued our understanding or stretched our credulity. This month we take a look at something we discussed in a recent show, commercialization of space:

Isn't commercial branding at NASA already here and wouldn't increased spacecraft branding diminish the science?? Andy Burns, UK.