sun
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Turns Out Half of Earth’s Water May Have Come from Space Dust
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…
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To Save Forests, Researchers Are Hooking Trees Up To Twitter
In July 2018, a century-old red oak went live on Twitter. The account @awitnesstree, tweeting from the Harvard Forest in Petersham, Massachusetts, introduces itself in its bio: Witnessing life as a tree in a changing environment for more than a century. Views are my own – sort of (data translated by scientists and communicators at…
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Sun-Orbiting Spacecraft Takes Fascinating Images of a Coronal Mass Ejection
Coronal mass ejections are regular space weather events involving huge, fast-moving expulsions of plasma from the Sun’s surface. They’re routinely observed by a bevy of telescopes, and recently, Solar Orbiter has imaged its first stellar burps.
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Does Our Sun Have a Long-Lost Twin?
The strange configuration of material in the outer reaches of our solar system has led a team of scientists to speculate that the Sun had a companion during its early days. Intriguingly, this scenario could explain the presence of the hypothesised Planet Nine, should it actually exist.