The comet’s unusual distinct dual-lobe shape has been a mystery since its initial discovery, and holds clues as to its formation
Solar System
Solar System
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Venus may have once been habitable, NASA says
The hostile world may have had a shallow liquid-water ocean and habitable surface temperatures
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New Horizons Update: A day on Pluto and Charon captured by spacecraft
On approach in July, NASA’s spacecraft captured the dwarf planet rotating over the course of a full “Pluto day”