Dr Peter Grindrod is a planetary scientist from Birkbeck, University of London.

Back in 1989, planetary scientist Alan Stern faced a challenge.

I'm a planetary scientist here at NASA Ames Research Center.

I'm a planetary scientist, and I'm fascinated by how other worlds came to be.

Michelle Thaller is a planetary scientist with NASA.

Sara Seager is a renowned Canadian-born astrophysicist and planetary scientist based at The Massachusetts Institute of Technology.

You could call him "mercurial" if that weren't inappropriate for a planetary scientist focused on Pluto.

Sylvestre is a planetary scientist at France's Institute for Research and Planetary Astronomy, and deputy principal investigator for SuperCam.

But as the seasons changed, the clouds cleared, says planetary scientist Sebastian Rodriguez of the University of Paris Diderot.

In the driver's seat of the Small Pressurized Rover simulator is planetary scientist and Haughton-Mars project director Pascal Lee.

Geraint Jones is a British Science Association Media Fellow and planetary scientist at UCL's Mullard Space Science Laboratory in Surrey

Dr Jonathan Nichols is a planetary scientist from the University of Leicester and a 2018 British Science Association media fellow

Dr. Louise Prockter is a planetary scientist at the Johns Hopkins University's Applied Physics Laboratory in Maryland, in the US.

I have nothing, tweeted planetary scientist Sarah Horst from the University of Colorado, who studies the atmosphere of Saturn's moon Titan.

The Planetary Society had grown rapidly following its founding in 1980 in large part because its President was planetary scientist Carl Sagan.

Prof Monica Grady, a planetary scientist at the Open University, was one of Pillinger's PhD students and worked with him throughout her career.