Planet Nine
There’s One Last Place Planet 9 Could Be Hiding
A recently submitted study to The Astronomical Journal continues to search for the elusive Planet Nine (also called Planet X),…
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…
2029 Will be the Perfect Year to Launch a Mission to Sedna
Object 90377 Sedna - a distant trans-Neptunian object known best for its highly elliptical, 11,390-year long orbit - is currently…
What Happens to Interstellar Objects Captured by the Solar System?
Now that we know that interstellar objects (ISOs) visit our Solar System, scientists are keen to understand them better. How…
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…
If Planet 9 is a Primordial Black Hole, We Might Be Able to See Flares When it Consumes Comets
A comet-eating black hole the size of a planet? It's possible. And if there's one out there in the distant…
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,…
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…
Did the Sun Steal Planet Nine?
One of the biggest new mysteries in our Solar System is the purported presence of a large and distant "Planet Nine,"…