Jupiter’s icy moon Europa to block out star for skywatchers

Later this month, skywatchers in Africa can watch a star blink out of sight thanks to a quirk of celestial arrangements.

The European Space Agency (ESA) mission Gaia, which launched in 2013, has been a powerhouse of observational astronomy, making a wide impact on the way scientists study the sky. From mapping the galaxy in astonishing detail to finding a star cluster that was hidden by glare in other telescopes, the spacecraft’s ultra-sensitive instruments have proved themselves invaluable in the study of the Milky Way.

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