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 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 ...
Step outside just after sunset and you may catch an unusual sight: six planets strung across the sky in a gentle arc. The ...
LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...
Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...
LONDON — A long-lost planet that helped create the Moon may have formed much closer to the Sun than scientists once thought, according to new research. Scientists have discovered that Theia, the ...
An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...