• Professor of Astrobiology, UNSW
A view from the ‘Kimberley’ formation on Mars taken by NASA’s Curiosity rover. The strata in the foreground dip towards the base of Mount Sharp, indicating flow of water toward a basin that existed before the larger bulk of the mountain formed. NASA/JPL-Caltech/MSSS

The new space race: why we need a human mission to Mars

We could learn a lot from any mission to send people to Mars, such as whether there’s life elsewhere in the universe or even the technology for new household appliances.
Hydrothermal vents: nurseries for life on Earth? Wolfgang Staudt/Flickr

Was life on Earth kickstarted by hot water?

Scientists have simulated the electrical energy produced in the Earth that may have led to life 3.5 billion years ago. Using a fuel cell, researchers from the University of Leeds and NASA’s Jet Propulsion…
A bit of national pride and a lot of science has sent India to Mars. EPA/PIYAL ADHIKARY

Indian Mars mission beats neighbours, sniffs for methane

Last Tuesday the Indian space agency launched a mission to Mars. Its goal is to place a satellite into orbit around that planet. The probe is currently in Earth orbit (although not quite high enough yet…
Animals in space were precursors to astronauts, so why do we continue to launch our furry friends into orbit? Jeremy Brooks

Dogonauts and Persian cats: why send animals into space?

If you believe news reports last week, Iran plans to launch a Persian cat into space in the next six months or so. What a good idea – how about launching Australia’s whole cat population on a one-way mission…
Is sending “oldies” to Mars an acceptable sacrifice – or a case of “voluntary euthanasia”? Be-Younger.com

Pensioners to go to Mars – why the old ones are the best

Tourist “astronaut” millionaire Dennis Tito wants to send an “older couple” to Mars. Would this be a stunt by an enthusiast or a meaningful breakthrough in space exploration? Being elderly myself, I have…
Russia is no stranger to ambitious space exploration – and has produced several notable firsts. Maxim Shipenkov/ EPA

Space Race reloaded: will Russia send cosmonauts to the moon?

For decades, the Soviet Union was a major player in the exploration of space, famously locking horns with the US in the “Space Race” – a competition for orbital supremacy and solar system exploration throughout…

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