article_snippet.sent: Esa’s Rosetta spacecraft has captured stunning images of a dust jet erupting from comet 67P Churyumov-Gerasimenko.
article_snippet.sent: the jet may have been caused by a wave of heat reaching ice trapped under the surface, causing an explosion of material.
article_snippet.sent: This animation shows the jet erupting from comet
article_snippet.sent: the jet is unusual because the jet is erupting from the dark underside of the comet, whereas such activity had only been seen on the day side so far.
article_snippet.sent: But the comet’s not clear if this caused the jet - or an explosion of material caused by ice sublimating (turning from solid to gas) underground.
article_snippet.sent: The region of the comet where a spectacular new jet erupted from is known as Imhotep.
article_snippet.sent: The region of the comet where this jet erupted had rotated into sunlight, and a spectacular new jet was no longer visible against the overexposed coma.
article_snippet.sent: This means scientists aren’t sure if the eruption was short-lived, or was a continuous jet.
article_snippet.sent: This recent image has been processed to spotlight the comet’s activity, including a striking jet on the left, near the neck region .
highlights_snippet.sent: Scientists in Germany observed a jet erupting from comet 67P .
  
highlights_snippet.sent: In images two minutes apart, the jet appears on the dark side of the comet .
  
highlights_snippet.sent: the jet may have formed when melting ice caused an explosion of material .