Two comets, C/2025 A4 (Lemmon) and C/2025 R2 (SWAN), are about to reach their closest approach to Earth and you can watch the ...
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Scientists discover 1st evidence of 4.5-billion-year-old 'proto-Earth' buried deep within our planet
Roughly 4.5 billion years ago, the young solar system was a swirling cloud of gas and dust that formed the first asteroids ...
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