Three Years Ago Today New Horizons Passed Pluto

Holy Hadean history Batman, where does the time go? Today marks the third anniversary of New Horizons‘ flyby of Pluto and Charon, the first, last, and as yet only mission ever to the distant dwarf planet (aka the reigning King of the Kuiper Belt.) All of the close-up detailed images of Pluto and Charon we…

Can Pluto Be a Planet Again Already?

Ever since the discovery of Pluto by Clyde Tombaugh in 1930 our Solar System was known to have nine planets orbiting the Sun. “My Very Eager Mother Just Served Us Nine Pizzas” was a popular mnemonic in my elementary school days to help remember the order of major planets from Mercury outward. But in 2006,…

Voyager 1’s Famous Long-Distance Valentine

If you’re in love with space then you’ll fall head over heels for this: it’s a picture of Earth taken from the Voyager 1 spacecraft after it passed the orbit of Pluto back in 1990—on Valentine’s Day, no less. That image of our planet from almost 4 billion miles away inspired Carl Sagan to write his famous…

Here’s What It Would Look Like to Land on Pluto’s Heart

What would it look like to approach Pluto for a landing? Perhaps some day in the future a robotic mission will do exactly that and we’ll know for sure, but for now we have to use our imaginations…luckily we do have some incredible images of Pluto to help with the details, thanks to NASA’s New…

Behold the Most Distant Crescent Moon

At first glance this pixelated picture may not look all that spectacular, but it gains a whole new meaning when you realize what it’s actually showing: a look at the most distant crescent moon ever seen! But this isn’t Earth’s moon; it’s Charon, Pluto’s largest companion, lit by the light from a Sun 3.2 billion miles away—some…

Pluto Has Giant Versions of Ice Formations Found on Earth

Using a model similar to what meteorologists use to forecast weather and a computer simulation of the physics of evaporating ices, scientists have found evidence of snow and ice features on Pluto that, until now, had only been seen on Earth. Read the rest of this story here: Scientists Offer Sharper Insight into Pluto’s Bladed Terrain

Icy Nix Indicates Pluto’s Moons Are Leftovers From a KBO Collision

Recent findings from the New Horizons team reveal that Pluto’s third-largest satellite Nix is covered in the purest water ice yet observed in the dwarf planet system, even purer in spectra than what was seen on its slightly larger sibling Hydra. This analysis further supports the hypothesis that Pluto’s moons were created in an impact event…

New Planet and Pluto Stamps Available Today!

They’re here and they’re from outer space! The U.S. Postal Service has two new sets of Forever® stamps based on NASA’s exploration of the Solar System: the Views of Our Planets and Pluto—Explored! series, both of which become available for purchase on May 31, 2016. Designed by Antonio Alcalá, the Views of Our Planets stamps feature…

Hail Hydra: Pluto’s Moon is Covered in Almost Pure Water Ice

Discovered in June 2005, distant Pluto’s outermost moon Hydra it thought to have formed during the same collision four billion years ago that created the Pluto-Charon system that we see today. Yet despite its age this 31-mile (50-km) -long moon appears remarkably clean and bright,  as witnessed by New Horizons during its close pass through the Pluto system in July 2015.

Pluto’s Frozen Lake Hints at a Warmer Past

Hockey fans take note: future visitors to Pluto may want to bring along their sticks and skates—the distant planet may harbor some pristine ice in the form of frozen ponds and lakes! (NASA might have to work on a lightweight, collapsible Zamboni first though.)

Surprise! Pluto May have Clouds

We could be calling it Cloudgate—”leaked” information from internal emails identifying structures in Pluto’s already hazy atmosphere that could very well be clouds, based on a March 4 article in New Scientist. The image above shows sections of a New Horizons image attached to an email sent by SwRI scientist John Spencer, in which he noted particularly…

Pale Blue Dot: Our Valentine from Voyager 1

If you’re in love with space exploration then you’ll fall for this: a picture of Earth (and five other planets) taken from the Voyager 1 spacecraft after it passed the orbit of Pluto in 1990, 26 years ago today. That image of our planet from almost 4 billion miles away inspired Carl Sagan to write his…