https://behindtheblack.com/behind-the-black/points-of-information/how-comet-67pc-g-was-made/ Thu, 28 Jul 2016 16:27:25 +0000 hourly 1 https://wordpress.org/?v=6.9.4 https://behindtheblack.com/behind-the-black/points-of-information/how-comet-67pc-g-was-made/#comment-918664 Thu, 28 Jul 2016 16:27:25 +0000 http://behindtheblack.com/?p=40723#comment-918664 In 1959 (a decade before its discovery) comet 67P changed its orbit drastically during a near passage of Jupiter. Its perihelion halved from 2.7 to 1.3 AU. The Solar system is active. And the comet is active because new ices are still exposed as it comes closer to the Sun than ever before.

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