The fireball captured by the Global Fireball Observatory camera at Miquelon Lake Provincial Park, Alberta. (University of Alberta)
The fireball captured by the Global Fireball Observatory camera at Miquelon Lake Provincial Park, Alberta. (University of Alberta) - Researchers from Western have shown that a fireball that originated at the edge of the Solar System was likely made of rock, not ice, challenging long-held beliefs about how the Solar System was formed. Just at the edge of our Solar System and halfway to the nearest stars is a collection of icy objects sailing through space, known as the Oort Cloud. Passing stars sometimes nudge these icy travellers towards the Sun, and we see them as comets with long tails. Scientists have yet to observe any objects in the Oort Cloud directly, but everything detected so far coming from its direction has been made of ice. Theoretically, the very basis of understanding our Solar System's beginnings is built upon the foundation that only icy objects exist in these outer reaches and certainly, nothing made of rock. https://www.communications.uwo.ca/wn-video/clipPreview.mp4 - Nest Cam footage of the fireball.
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