Pluto

Charon’s Red Cap at its North Pole? We Might Have an Answer

Pluto’s largest moon, Charon, started off as a beautiful, smooth red grape until someone came along, mostly peeled it, tried…

4 months ago

Pluto’s Surface was Shaped by Ice Volcanoes

For all of Earth's geological diversity and its long history, the planet has never had ice volcanoes. But Pluto has.…

6 months ago

Now We Know Why Pluto has These Strange Features on its Surface

After New Horizons made its close flyby of Pluto in July of 2015, scientists were astounded at the incredible closeup…

10 months 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,…

1 year ago

Oumuamua is Probably Very Similar to Pluto, Just From Another Star System

In 2017, the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) made history with the detection of a mysterious object…

2 years ago

Pluto has Snowcapped Mountains, But Why?

We can thank NASA's New Horizons spacecraft for opening our eyes up to Pluto's complexity. On July 14th, 2015, the…

2 years ago

Sunrises Across the Solar System

Scientists have learned a lot about the atmospheres on various worlds in our Solar System simply from planetary sunrises or…

2 years ago

Pluto and Other Kuiper Belt Objects Started Out With Water Oceans, and Have Been Slowly Freezing Solid for Billions of Years

It seems unlikely that an ocean could persist on a world that never gets closer than 30 astronomical units from…

2 years ago

New Horizons is so Far From Earth That the Positions of the Stars Look a Little Different From its Perspective

From its current position in the Kuiper Belt, the New Horizons spacecraft recently conducted a parallax experiment that is not…

2 years ago

Astronomers Continue to Analyze Pluto’s Atmosphere

When NASA's New Horizons spacecraft flew past Pluto, studying the atmosphere was a key scientific objective. Most of what we…

2 years ago