kuiper belt

How Many Planets Could Be in the Kuiper Belt?

A recent study published in The Astrophysical Journal Letters investigates the potential existence of Mars-sized free-floating planets (FFPs)—also known as…

2 months ago

Under Some Conditions, Comets Could Deliver Organic Molecules to Planets

New research shows how comets could deliver the building blocks for life in systems with close-orbiting planets, aiding in the…

3 months ago

JWST Observes the Kuiper Belt: Sedna, Gonggong, and Quaoar

Using data acquired by the JWST, an international team of planetary scientists have revealed new insights about some of the…

4 months ago

Pluto Team Updates Science From the Solar System’s Edge

Nearly eight years after its historic Pluto flyby, NASA's New Horizons probe is getting ready for another round of observations…

11 months ago

The Universe is Brighter Than we Thought

At the edge of the Solar System, New Horizons has taken new light measurements of the cosmos to get a…

1 year ago

A Newly-Discovered (Almost) Dwarf Planet Will Come Surprisingly Close in 2031

It’s good to remember how little we know about the outer solar system.  Humans only really began observing it within…

3 years ago

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,…

3 years ago

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…

3 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…

3 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