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2,000-foot-wide 'potentially hazardous' asteroid has just made its closest approach to Earth — and...
Live Science via Yahoo News· 2 weeks agoThe 2,000-foot-wide asteroid 2013 NK4 just made its closest approach to Earth in recorded history,...
The Seven Most Amazing Discoveries We’ve Made by Exploring Mercury
Smithsonian Magazine· 2 weeks agoIt seems like Mercury, sitting so close to the sun, should already be a dead planet. Scientists thought the humble hunk of rock that’s only slightly girthier than Earth’s moon would have been ...