space
Is the Elusive ‘Planet Nine’ Actually a Massive Ring of Debris in the Outer Solar System?

The odd orbital arrangements of objects beyond Neptune have led scientists to speculate about the existence of a so-called Planet Nine – a hypothetical large planet in the outer reaches of the Solar System. New research suggests a planet isn’t required to achieve the anomalous orbits, and that a massive ring of debris is a more plausible explanation. Critics of the proposed disk say more evidence is needed. Read More >>

space
Planet Nine Just Got An Unexpected New Team of Hunters

Since Pluto was infamously demoted to a dwarf planet in 2006, some astronomers have turned their attention to finding the true Planet 9, a hypothetical, Neptune-sized world that orbits the Sun at least a few hundred times further out than Earth. While there’s no shortage of ideas about what Planet 9 could look like—or what it may have experienced throughout its life—so far, no one has been able to spot this elusive world. Read More >>

space
The Amazing Way Astronomers Are Now Hunting For Planet Nine

Saturn’s Cassini probe is nearing the end of its mission, but that doesn’t mean it’s no longer useful. In fact, astronomers have found a totally new purpose for the plucky little space probe: searching for the elusive Planet 9. Read More >>

space
A Giant Telescope Will Search The Stars for ‘Planet X’

For years, astronomers have been searching (pointlessly?) for 'Planet X', a rumoured Earth-sized planet said to live in the outer reaches of the Solar System (and which is going to collide with Earth and kill us all, if you listen to the truthers). Read More >>