Neptunes, exoplanets whose sizes are between Earth and Neptune, and which are between the known for their water-rich ...

For astrobiologists, the search for life beyond our solar system could be likened to where one would look in a vast ...

Planet Nine was previously suggested as a possible explanation for distant orbital clustering. It was thought to be ten times Earth’s mass, orbiting far beyond Neptune.

Recent research suggests a warp in the orbital plane of Trans-Neptunian Objects (TNOs) between 80 and 400 AU, hinting at the ...

On August 24, 2006, Pluto ceased to be considered a planet. A mixture of rock and ice located in the Kuiper Belt, a region of icy objects beyond the orbit of Neptune. This demotion ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

A study suggests an Earth-sized planet, dubbed Planet Y, may exist beyond Neptune, affecting the orbits of icy objects in the ...

The Solar System does not have a clear border. The influence of the Sun in certain domains is small enough for the Voyager ...

A mysterious new world may be hiding in the outer reaches of our solar system. According to arecent study published on arXiv ...

Evidence of any LGMs – little green microbes – will be devilishly hard to find, as the paper suggests that any “period of habitability” on Ceres existed between ~0.5 and 2 billion years after its ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

Exoplanet habitability depends on a whole host of factors, with liquid water at the top of the list. It also requires a ...