Since New Horizons' close encounter with Pluto 10 years ago, experts have come to think of the dwarf planet as much more ...

Scientists predict that on primitive Earth, the atmosphere consisted mostly of ammonia, water vapor, methane, and hydrogen. With exposure to intense heat, ultraviolet light, electrical storms ...

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They found that while differentiated planetesimals had contributed around 70% of Earth's mass, they provided only 10% of its Zn. The remaining Zn came from primitive materials that had not ...

Life on Earth began over four billion years ago ... ears reflect its adaptations to a semi-aquatic lifestyle, possibly primitive design that has survived through the ages. The tapir is an ...

Archaea, which means "ancient things" in Greek, are one of the oldest forms of life on Earth and belong to a group called the third domain of life. Many archaea live in some of the harshest ...