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“ESA”

Aug 24, 2015 12:04 PM ET // Jason Major
Europe's XMM-Newton telescope took an X-ray scan of the Milky Way's core, capturing some dazzling high-energy delights.
Aug 17, 2015 01:30 PM ET // Elizabeth Howell
After nearly 20 years gazing at the sun, the SOHO spacecraft is about to spy its 3,000th comet.
Aug 12, 2015 05:30 PM ET // Irene Klotz
On Aug. 13, Comet 67P/Churyumov-Gerasimenko will reach perihelion, and with it the orbiting European Rosetta mission. Here's a brief rundown of Rosetta's observations of the icy body in the run-up to its day in the sun.
Aug 11, 2015 03:07 PM ET // Jason Major
On July 29, with ESA's Rosetta spacecraft in orbital tow, the 2.5-mile-long Comet 67P/Churyumov-Gerasimenko fired its brightest jet yet since Rosetta's arrival just over a full year ago.
Jul 30, 2015 04:38 PM ET // Ian O'Neill
As Comet 67P/Churyumov-Gerasimenko approaches perihelion, the sun is heating up its nucleus and the solar wind is causing its tail to evolve. And the Rosetta mission has a ringside seat.
Jul 6, 2015 10:02 AM ET // AFP
Astronomers proposed a novel explanation for the strange appearance of the comet carrying Europe's robot probe: microscopic aliens.
Jul 1, 2015 01:00 PM ET // Irene Klotz
Scientists have found gigantic sinkholes more than 200 yards (183 meters) in diameter -- twice the length of a football field -- and just about as deep breaking the surface of the comet being studied by the orbiting Rosetta spacecraft.
Jun 19, 2015 06:39 PM ET // Ian O'Neill
Titan's alien lakes of methane may be formed from the same processes that create sinkholes on Earth.
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