Kuiper belt

January 1, 2019

New Horizons Spacecraft Makes New Year’s Day Flyby of Ultima Thule, the Farthest Rendezvous Ever

LAUREL, Md. — Wow, what a way to ring in the new year. As the world celebrated the start of 2019, scientists with NASA’s New Horizons spacecraft partied […]
May 21, 2018

Weird Space Rock Provides More Evidence for Mysterious ‘Planet Nine’

The solar system just got a bit stranger. As astronomers continue their ongoing quest to find the elusive Planet Nine, a team found a space rock that […]
May 8, 2017

Going Back to Pluto? Scientists to Push for Orbiter Mission

Humanity’s first up-close look at Pluto was so intriguing that some researchers want to go back and spend a lot more time studying the icy world. […]
March 4, 2017

Pluto Could Be Made A Planet Again, Along With 102 Other Celestial Bodies

According to this new definition, if Pluto becomes a planet, then our moon will too! Way back in 2015, NASA’s New Horizon’s mission flew by the […]
January 18, 2017

NASA Hosts Facebook Live to Mark Success, Future of New Horizons Mission

Members of NASA’s New Horizons team will discuss the achievements of the first encounter with Pluto and look ahead to the mission’s next exploration of the […]
August 15, 2016

This Bizarre Meteorite May Be the First to Come From the Outer Solar System

People often speak of meteors and meteorites as if they come from far-flung stars, but the truth is that virtually all of them come from the […]
August 1, 2016

The Significance of Pluto

I first learned about the Solar System‘s planets when I was six years old. My music teacher conditioned our class to learn their names in the […]
July 13, 2016

New dwarf planet with 'eccentric' orbit unexpectedly discovered by astronomers

Large, looping orbit takes dwarf planet 700 years to travel around the sun A team of astronomers has discovered a new dwarf planet, and they weren’t even […]
January 23, 2016

Can there really be a planet in our solar system that we don't know about?

How skeptical should we be, and how will we find out if this mystery planet is really out there? Scientists have long suspected that our solar […]