Comet 67P/Churyumov–Gerasimenko develops coma

Comet 67P/Churyumov–Gerasimenko develops coma

As comet-chaser Rosetta approached its target to roughly 2 million km in early May, images captured by OSIRIS clearly showed that the comet has already developed 1 300 km long coma. This onset of activity offers scientists the opportun