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Three New Planets – level 2
07-08-2019 07:00
Recently, a NASA satellite found three new planets that...Three New Planets – level 3
07-08-2019 07:00
Last April, a NASA satellite launched and discovered three...Mission to Mercury – level 1
19-06-2018 15:00
Mercury is the smallest planet in the solar system....Meteor Over Michigan – level 1
24-01-2018 15:00
Sometimes something small moves in the solar system. We...