Asteroid Florence buzzes Earth in closest fly-by since 1890
4 September 2017
A 4.4-kilometre-wide space rock whizzed past Earth on its closest orbit in over a century. This asteroid won’t get this close again until after 2500
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Found 95 results for asteroid
Giant loner asteroids suggest baby planets formed quickly
3 August 2017
The oldest intact asteroids hint that planets didn’t grow by slowly gathering small space rocks, but came from rapidly collapsing dust
Asteroids may have been giant mudballs in the early solar system
14 July 2017
Asteroids could have started life as sludgy balls of mud instead of tough rocks, which may explain how rocky planets came to be
How Jupiter split the asteroid belt in two shows its great age
12 June 2017
An analysis of meteorites shows that Jupiter divided the rocks of the asteroid belt into two families within the first million years of the solar system
What vision of doom made Hawking seek a faster Earth exit plan?
10 May 2017
Stephen Hawking now says humanity must colonise other worlds within a century, rather than 1000 years, to ensure survival. Why the rush, asks Dirk Schulze-Makuch
