Planet 9
Could Modified Gravity Be the Answer to Planet 9?
As students advance to higher and higher physics courses, they eventually learn that the simple Newtonian dynamics they learned about…
If Planet 9 has Moons, Would That Help Us Find It?
Planet 9 continues to remain elusive. This potential super-Earth-sized object in the outer Solar System is only hypothetical, as something…
Flying to (Hypothetical) Planet 9: Why visit it, how could we get there, and would it surprise us like Pluto?
In a recent study submitted to Earth and Planetary Astrophysics, an international team of researchers discuss the various mission design…
If Planet 9 is out There, Here's Where to Look
A study of Kuiper belt objects points strongly to the existence of a super-Earth on the outer edge of our…
Astronomers Have Found Planet 9… in Another Solar System
Even with all we've learned about our own Solar System, especially in the last couple of decades, researchers still face…
The Sun Might Have Once Had a Binary Companion Star
A new study from the Harvard Smithsonian Center for Astrophysics has bolstered the case for our Sun having a long-lost…
Maybe the Elusive Planet 9 Doesn’t Exist After All
Oh Planet Nine, when will you stop toying with us? Whether you call it Planet Nine, Planet X, the Perturber,…
More Evidence that Planet 9 is Really Out There
What's going on in the distant reaches of our Solar System? Is there a Planet 9 out there? Out in…
The Record for the Most Distant Object in the Solar System has been Shattered. Introducing FarFarOut at 140 Astronomical Units
Remember Far Out, the distant planet at the far reaches of the Solar System, that was discovered in December, 2018?…
A Disc of Icy Material, not Planet 9, Might Explain the Strange Movements in the Outer Solar System
Is there or isn't there a Planet 9? Is there a planet way out on the outskirts of our Solar…