Up to half of Earth’s ocean water may have come from impacts by asteroids
Hayabusa2 found its explosive creation
‘Tabletop exercise’ will ensure US government is ready to respond to any real asteroids that could be on their way to destroy us
But we need to change the law first
The raw materials from a comet have been found sealed inside a pristine, primitive meteorite.
While two of these space rocks are not coming back any time soon, the other two hit their closest approach to Earth for a long while to come.
Climate change is a serious threat to human society. But even the most extreme worst-case future scenario wouldn’t wipe out humanity instantly. There’s only one thing that might do that — a major asteroid or comet impact.
Metallic asteroids are the cooled cores of disrupted planetesimals. They originated early in the history of our Solar System when planets were beginning to form. University of California Santa Cruz planetary researchers Jacob Abrahams and Professor Francis Nimmo think that as the metal cooled and solidified, volcanoes spewing liquid iron could have erupted through a solid iron crust onto the surface of the metallic asteroid.
Scientists hope samples from Hayabusa 2 will provide clues about origins of life on Earth