Asteroids are minor planets, especially those of the inner Solar System. The larger ones have also been called planetoids. These terms have historically been applied to any astronomical object orbitin...
183 VuesMars is the focus of much speculation and scientific study about possible human colonization. Its surface conditions and the likely availability of water make it arguably the most hospitable of the pl...
236 VuesHave you ever wondered about planets in other solar systems? Have you ever thought about the possibility of life elsewhere in the Universe? For the first time in human history, we know that planets ar...
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