Two new exoplanets and the need for new habitable zone definitions

At the beginning of the exoplanet age, the goals were fairly simple. The first was to find as many of them as possible to ...
Forbes

Meet ‘Planet Y’ As New Evidence Suggests Secret World Beyond Neptune

There may be a warp in the Kuiper Belt, possibly caused by “Planet Y” — a Mercury-to-Earth-sized world that orbits the sun way beyond the orbit of Neptune. Is there a mysterious “Planet Y” orbiting ...
KTHV

Exposed core of gas giant planet, like Neptune, seen for first time

Astronomers say they have spotted, for the first time, what appears to be the exposed core of a gas giant planet that has shed -- or never found -- its gaseous atmosphere. A team lead by the ...
SETI

Orbital Oddity and Neptune: Resonant Object Hints at Planetary Migration

Astronomers studying the distant reaches of our Solar System have identified an unusual trans-Neptunian object (TNO) locked in a rare orbital configuration with Neptune. The object, discovered through ...