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The year the sun turned blue

Something strange started happening in cities and towns in Ontario and across the northeastern United States in the summer of 1950. In the middle of the day, it started to get dark—so dark, in fact, that cities like Toronto ...

date23 hours ago in Earth Sciences
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Born-again planetary nebula

Beneath the vivid hues of this eye-shaped cloud, named Abell 78, a tale of stellar life and death is unfolding. At the centre of the nebula, a dying star – not unlike our Sun – which shed its outer layers on its way to ...

dateJul 28, 2015 in Astronomy
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Lobster-Eye imager detects soft X-ray emissions

Solar winds are known for powering dangerous space weather events near Earth, which, in turn, endangers space assets. So a large interdisciplinary group of researchers, led by the U.S. National Aeronautics and Space Administration ...

date20 hours ago in General Physics
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'Bathtub rings' suggest Titan's dynamic seas

Saturn's moon, Titan, is the only object in the Solar System other than Earth known to have liquid on its surface. While most of the lakes are found around the poles, the dry regions near the equator contain signs of evaporated ...

date22 hours ago in Space Exploration
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First detection of lithium from an exploding star

The chemical element lithium has been found for the first time in material ejected by a nova. Observations of Nova Centauri 2013 made using telescopes at ESO's La Silla Observatory, and near Santiago in Chile, help to explain ...

date1 hour ago in Astronomy
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