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Header image: <a href=«https://www.shutterstock.com/image-illustration/tardigrade-water-bear-3d-rendered-illustration-535109380?src=» http:>3DStock/Shutterstock

Header image: The prototype space greenhouse developed by the TIME SCALE project showed that it is possible to recycle nutrients and water to grow food. Image credit – Karoliussen

Header image: Laser Zentrum Hannover is also looking at lunar 3D printing. LZH

Header image: Virgin Galactic’s Carrier Aircraft VMS Eve and VSS Unity Take to the Skies (Virgin Galactic)

Daniel Brown, Nottingham Trent University

Header image: What makes more sense: Sending a human or a robot to Mars? Credit: Juergen Faelchle/Shutterstock.com

Header image: Chinese astronauts Tang Hongbo, Nie Haisheng, and Liu Boming during ceremony before heading to Tiangong. ROMAN PILIPEY/EPA

Lauren Samuelsson, University of Wollongong

Header image: Artist impression of a solar disk in space. Credit: NASA

Trevor George, King’s College London

Header image: Anastasiya (left) and myself working on the Haughton crater rim. Mars Society, Author provided.

Header image: It’s happened before: why we need to plan for the next doomsday event that could wipe out much of life on Earth. Shutterstock/solarseven

Matt Damon as astronaut and exobotanist Mark Watney in the film The Martian grows crops on Mars. (20th Century Fox/Handout)

Header image: Almost every star has planets – so there are more planets in our galaxy than there are stars. NASA Ames/JPL-Caltech/T. Pyle, CC BY-SA

Hope Johnson, Queensland University of Technology

The 2015 blockbuster “The Martian“(based on a 2011 novel of the same name by Andy Weir) tells the story of astronaut Mark Watney’s struggle to survive on Mars and the rescue efforts to bring him home after he was left behind when his team’s mission was aborted. Part of this story is devoted to Watney’s efforts to keep himself alive by growing potatoes on Mars. But would this really be possible?

Header image: One of the Vanguard satellites being checked out at Cape Canaveral, Florida in 1958. NASA

Header image: Phil Sellens, CC BY

Iona McCleery, University of Leeds

Header image: A researcher in a spacesuit on “Mars” outside the Mars Society Desert Research Station in Utah. David Howells/Corbis Historical via Getty Images

Header image: Glenn, in the NASA mailroom, received letters from fans of all ages. John Glenn Archives, The Ohio State University, CC BY-ND

Header image: A SpaceX Dragon capsule, NASA Johnson/Flickr, CC BY-NC

Mind altering [Image credit: NASA]

Allyson Brady, McMaster University

Header image: Melburnians admire the first primrose to arrive in the colony, transported by a Wardian case, in Edward Hopley’s A Primrose from England, circa 1855. [Bendigo Art Gallery, Gift of Mr and Mrs Leonard Lansell 1964]

Title image: Csilla Ari D`Agostino and her teammate carry out experiments outside their undersea habitat. [Image credit: NASA]

Christopher Gaffney, Lancaster University and Bethan Phillips, University of Nottingham

Header image: Pilots and air crew passing the time with books and newspapers. S.A. Devon, RAF official photographer/Imperial War Museum

Header image: St Canice’s rooftop garden, where a horticultural therapy program demonstrated its benefits for mental health and wellbeing. Author provided

by Yasmine Shamma, University of Reading

Header image: Artist’s impression of a lunar base. NASA

Header image: An Indonesian traditional seaweed farm in Nusa Penuda, Bali. (Shutterstock)

By Heidi Zimmer, Southern Cross University and Catherine Offord

Header image: George Frey/EPA

Header image: IgorAleks/Shutterstock

Header image: The finicky fruit took some time to adapt to California’s climate. Print Collector via Getty Images