kuiper belt

Comets Already Grow a Coma out in the Kuiper Belt

Just when do comets get their signature coma? Conventional wisdom says it only happens when they get close enough to…

4 years ago

New Horizons Saw the Universe With Even Less Light Pollution than Hubble’s View

A new study based on New Horizons data has conducted the most accurate measurements of the Universe's background light to…

4 years ago

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…

4 years ago

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,…

4 years ago

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…

5 years ago

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.

5 years ago

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…

6 years ago

Here it is, the high resolution photo of MU69 we’ve all been waiting for.

A newly-processed image of Ultima Thule provides the highest-resolution picture of the object to date.

6 years ago

New Horizons Sees its Next Target for the First Time: Ultima Thule. Flyby Happens January 1, 2019

Earlier this month, the New Horizons team managed to capture the first images of Ultima Thule, the Kuiper Belt Object…

6 years ago

It Might Not be Planet 9 Causing Disruptions in the Kuiper Belt, Just the Collective Gravity of Everything Out There

According to a new study by a team from CU Boulder, Planet 9 may not be necessary to explain the…

6 years ago