On Wednesday, it will hurtle between the orbits of Earth and Mars at a relative speed of 128,500mph (207,000km/h); its nucleus is about a mile (1.6km) across, its tail is millions of kilometres. Source link
Read More »On Wednesday, it will hurtle between the orbits of Earth and Mars at a relative speed of 128,500mph (207,000km/h); its nucleus is about a mile (1.6km) across, its tail is millions of kilometres. Source link
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