The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into ...

For decades, something strange has lurked inside the icy giants of our solar system. Uranus and Neptune, distant blue worlds ...

Coulombe and the researcher team have intensified LTT 9779 b as an ultra-hot Neptune, meaning that the exoplanet is roughly the size of Neptune in our Solar System but is positioned much closer to its ...

Four billion years ago, Jupiter, Saturn, Uranus, and Neptune battled for position within our solar system. But some scientists suspect that there was a fifth planet, similar in size to Neptune ...

These carbon layers then sit on top of the planets' cores. Uranus is said to have a core the size of the planet Mercury, while Neptune has a core closer to the size of Mars. All of which is both ...

Some are Jupiter- or Neptune-size worlds that race on insanely hot orbits close to their suns. Others loop deep into space on weird trajectories—on average the orbits of extrasolar planets are ...

Worldwide, the best day to see the alignment is today, Feb. 28. Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could all be visible with clear skies, but not all can be seen by the ...