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Image: Atlantic ship tracks

The Copernicus Sentinel-3A satellite takes us over the Atlantic Ocean close to Spain and Portugal where the sky not only features clouds but also criss-cross tracks from maritime vessels.

dateFeb 15, 2018 in Earth Sciences
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Image: Obscured Sirius reveals Gaia 1 cluster

If you gazed at the night sky over the past few weeks, it is possible that you stumbled upon a very bright star near the Orion constellation. This is Sirius, the brightest star of the entire night sky, which is visible from ...

dateJan 30, 2018 in Astronomy
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