Kuiper Belt
A 6-Year Search of the Outer Solar System Turns up 461 new Objects (but no Planet 9)
After six years of observing the cosmos, the Dark Energy Survey has announced that it is also responsible for discovering…
New Horizons is Now 50 Astronomical Units Away From the Sun
As the New Horizons spacecraft hurtles out towards interstellar space, it has now reached an historical milestone. On April 17,…
Astronomers Find a New Binary Object in the Kuiper Belt
Scientists from the Southwest Research Institute (SwRI) have presented the discovery of a binary pair of objects way out in…
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,…
Over a Hundred New Large Objects Found in the Kuiper Belt
Hey Pluto, Sedna, Haumea, Makemake Et al.: You’ve got company! While searching for distant galaxies and supernovae, the Dark Energy…
New Horizon’s Flyby Target 2014 MU69 Gets its Official Name: Arrokoth
The KBO formerly known as Ultima Thule (2014 MU69) has officially been named "Arrokoth", the traditional Powhatan-Algonquin language.
Now You Can See MU69 in Thrilling 3D
The New Horizons team has released new images that take advantage of the "binocular effect" to create 3D impressions of…
Pluto and Charon Don’t Have Enough Small Craters
The New Horizons team just shared new findings about the lack of small craters on Pluto and Charon's surface, which…
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…