Page 46 - All About Space 68 - 2017 UK
P. 46

Sun's   twin






        Nemesis




        Where this controversial star would
        be located, if it really does exist

        Where Nemesis would be now
       If it existed, Nemesis would now be at its
    furthest point, its aphelion, about three light
                 years away from our Sun.

       Four light years    thought to have hit Earth

                                 When did the
                              asteroid impact?
                            The Chicxulub asteroid is
                             about 66 million years
                             ago, wiping out 75 per
                             cent of all life on Earth.





                                                                                The resultant crater from the
                                                                                impact measures more than 180
             How big was             Two light years                            How big is the crater?
                                                                                kilometers (110 miles) across, and
             the asteroid?                                                      is 20 kilometers (12 miles) deep.
             The dinosaur impactor
             is thought to have been
             about ten to 15 kilometers
             (six to nine miles) in
             diameter, enough to cause
             a lot of damage.                                                                                Oort Cloud







                                                Earth
       ©NASA                                                                                                             Sun

















                                                                             Where the asteroid hit Earth
                                                                             The crater from the asteroid that
                                Chicxulub,                                   killed the dinosaurs is located near
                                Mexico                                       the town of Chicxulub in Mexico,
                                                                             which the asteroid is named after.





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