Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...
Insane Curiosity on MSN
How scientists discover planets outside our solar system
Astronomers have discovered thousands of planets beyond our solar system, but finding them is incredibly difficult. Unlike ...
Astronomers studying the Kuiper Belt have detected a strange distortion that could point to an unknown planet lurking far beyond Neptune.
New Scientist on MSN
How to see six planets in the sky at once in rare celestial alignment
Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...
Astronomers have uncovered evidence of a spectacular collision of two planets within the confines of a faraway solar system, providing us with a rare .
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