Space on MSN
Wobbling exoplanet hints at a hidden exomoon so massive it could redefine the word 'moon' altogether
"In our solar system, the most massive moon is Ganymede, which is still extremely small compared to what we are inferring ...
The Daily Galaxy on MSN
Astronomers detect alien moon so massive it might redefine what a moon is
A new study published as a pre-peer-reviewed paper on arXiv and accepted for publication in Astronomy & Astrophysics suggests ...
Today In The Space World on MSN
Beyond Neptune: The frozen worlds, lost planets, and the search for a hidden ninth giant
Far beyond Neptune lies a vast and unsettling frontier filled with dwarf planets, ancient ice worlds, collapsing atmospheres, ...
Remember: A telescope or binoculars will be needed to spot far-flung Neptune! When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The moon will rise ...
A rare triple conjunction of the Moon, Saturn, and Neptune will be visible tonight, January 23, 2026. Learn the best time to ...
Neptune’s large moon Triton may have abandoned an earlier partner to arrive in its unusual orbit around Neptune. Triton is unique among all the large moons in the solar system because it orbits ...
The moons were discovered by a group of astronomers from Taiwan, Canada, the United States, and France. Between 2019 and 2021, they used the Canada France Hawaii Telescope to repeatedly monitor the ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results