From tiny bacteria to giant blue whales, the chemical reactions going on inside all living things – including us – that keep them alive cannot happen without water. By taking NASA’s lead and following the water, scientists can pinpoint the most compelling locations where life – either past or present – might possibly exist in the vast expanse of the solar system beyond our home planet.

From remote Antarctica to the towering Himalayas, accelerating ice loss under climate change casts a stark shadow over ecosystems, coastlines, and the equilibrium of our global environment. Glaciologists like Professor Andrew Mackintosh work to understand past glacier and ice sheet changes to improve future predictions – and that future looks bleak.