Kuiper Belt

Almost 4.7 billion miles from the Sun, there is more on the horizon for the New Horizons mission

By Elizabeth Rayne 1 year ago

distant space

Farfarout is now literally the most far-out object in the solar system

By Elizabeth Rayne 1 year ago

A color image of Arrokoth shows it is very red and smooth. The biggest crater, Maryland, can be seen on the small lobe. Credit: ASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

How to build a Kuiper Belt Object: Arrokoth's two halves formed separately and slowly came together

By Phil Plait 2 years ago

Arrokoth Hero

NASA officially gives Ultima Thule a fitting new Native American name

By Jeff Spry 2 years ago

Artwork depicting a Kuiper Belt Object far beyond Neptune. Credit: ASA/ESA/G. Bacon (STScI)

Where do the big moons of big Kuiper Belt Objects come from?

By Phil Plait 2 years ago

Artwork depicting the Kuiper Belt Object (225088) 2007 OR10, the largest object in the solar system that still has not been named. Credit: Alex Parker via 2007or10.name

Help astronomers name a Trans-Neptunian Object! (225088) 2007 OR10 just doesn't cut it

By Phil Plait 3 years ago

The highest resolution image of the Kuiper Belt Object 2014 MU69, taken by the New Horizons spacecraft minutes before closest encounter in 2019. Credit: NASA/Johns Hopkins Applied Physics Laboratory/Southwest Research Institute, National Optical Astronomy

Here it is: The most detailed full image of MU69 from New Horizons we'll ever see.

By Phil Plait 3 years ago

Ultima Thule

New Horizons’ last glimpse of Ultima Thule reveals how this already weird object is even weirder

By Elizabeth Rayne 3 years ago

Ultima Thule

NASA's newest image of Ultima Thule is even more hi-res

By Elizabeth Rayne 3 years ago

Artwork depicting the extremely distant Kuiper Belt Object 2018 VG18. Credit: Roberto Molar Candanosa/Carnegie Institution for Science

Meet your very, very distant solar system neighbor 2018 VG18

By Phil Plait 3 years ago