Back to the Future celebrates its 40th anniversary this year, so here are 40 incredible facts about the franchise.

Every planet takes its turn going retrograde, and since Sunday, May 4, Pluto, the planet of transformation, has moved ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere ...

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As the iconic film approaches its 40th anniversary, here is a list of the top 5 facts about the beloved classic.

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

It started, as many cosmic enigmas do, with a dim dot of light on a Hubble Space Telescope photo the sort that professional ...