Up to half of Earth's water may come from solar wind and space dust

By Luke Daly, Lecturer in Planetary Geoscience, School of Geographical and Earth Sciences, University of Glasgow
Martin R. Lee, Head of the School of Geographical and Earth Sciences, University of Glasgow
Nick Timms, Associate Professor, Curtin University
Phil Bland, ARC Laureate Fellow, Curtin University

Water is vital for life on Earth, and some experts say we should all drink around two litres every day as part of a healthy lifestyle. But beyond the tap, where does our water come from?

It flows from local rivers, reservoirs and aquifers. But where has that water originated from? Over geological time, Earth cycles water through living organisms, the atmosphere, rivers, oceans, the rocks beneath our feet, and even through the planet’s deep interior.

Read complete article

~	Jobseekers get about $345 less than pensioners each fortnight. This gap is hurting, and is set to widen without change

~	What is childhood dementia? And how could new research help?

~	Species living closely together in symbiosis is far older and way more common than you might think

~	We’re all feeling the collective grief and trauma of violence against women – but this is the progress we have made so far

~	Getting to know Alexandra Philbin: A Q&A with an Irish language activist

~	Trump trial reveals details about how the former president thinks about, and exploits, the media

~	Why the potential for another Donald Trump presidency is making Iran very nervous

~	Labor facing heavy defeat in Queensland, but faring better in federal polls

~	We reconstructed landscapes that greeted the first humans in Australia around 65,000 years ago

~	What do we lose when our old suburbs disappear?