The approach is the closest asteroid 2003 SD220 has been in over 400 years
Solar System
Solar System
Solar System
Radio observations of near-Earth object reveal a rare binary asteroid
A near-Earth asteroid discovered last year turns out to be two objects of equal size orbiting each other
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Rare oddly-shaped asteroid imaged in detail for the first time
A lump of space rock has been found to be quite an unusual member of our Solar System