A stunning blue and white spiral spotted in skies across Europe late Monday was created by frozen fuel tumbling from a SpaceX ...

Frozen fuel from the Falcon 9 rocket launched Monday created a luminous display for several minutes, and was seen by people from England to Eastern Europe.

A large glowing spiral visible in the night sky on Monday is believed to have been caused by a SpaceX rocket launch in the US.

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PhET creates free online interactive educational simulations that benefit STEM literacy worldwide.