When New Horizons made its close pass pf Pluto on July 14, 2015, it did much more than just take pretty pictures; it was also scanning the planet with a suite of science instruments designed to determine the nature of its surface, atmosphere, composition, and other key characteristics. One of these instruments was the Linear Etalon Imaging Spectral Array (LEISA), an infrared scanner that can detect the unique molecular “fingerprints” of particular elements and compounds like methane, nitrogen, carbon monoxide… and water (one of our favorites!)
At first the data returned from LEISA showed only a surprisingly small amount of water ice across Pluto’s surface. But that was water ice in its pure form; when researchers took into consideration ice containing a mixture of water and other materials they found a much more widespread distribution across the surface area visible to New Horizons.
This bumpy wrinkled pucker is actually an enormous ice volcano — i.e., a cryovolcano — on the surface of Pluto, imaged by the passing New Horizons spacecraft on July 14, 2015. Informally called Wright Mons, the feature is about 90 miles (150 km) across and 2.5 miles (4 km) high, about as high as some of the tallest Alps. The entire volcanic mountain spans an area half the width of the state of Massachusetts!
See the region in context on a global view of Pluto below:
A planet-killing astronomer is now attempting to introduce a new world into the Solar System.
Self-professed “Pluto killer” Mike Brown — the Caltech professor and astronomer whose discovery of Eris in 2005 prompted the reclassification of what constitutes a full-fledged planet, thus knocking Pluto from the list a year later — is now offering up evidence for the existence of a “real” ninth planet, far beyond the orbit of Pluto and possibly even traveling farther than the Kuiper Belt extends. This “Planet Nine,” say Brown and co-researcher Konstantin Batygin — also of Caltech — could be nearly the mass of Neptune, although it has not been directly observed by any Solar System surveys performed to date.
(And for those long-time Planet X fans who will assuredly cry “told you so,” this hypothesis is based on actual observations and not just wishful thinking or sci-fi dreams. There’s a difference.)
Yes, stop. Whatever you’re doing (unless it’s open-heart surgery in which case what are you doing online you quack) stop it right now and just look at this.
It’s a new version of the high-resolution images of Pluto acquired by New Horizons on July 14, 2015, except here color data was added to create an enhanced-color view that’s simply INCREDIBLE!
Note: this is a repost of an article from Feb. 2015 with a couple of updates.
If any of you remember it back in Dec. 2010 Japan’s Venus Climate Orbiter spacecraft AKATSUKI (aka Planet-C), after a five and a half month journey through space, failed to enter orbit around Venus due to a faulty thruster nozzle. It sailed right past the cloud-covered planet, going into orbit around the Sun. Fortunately, JAXA mission engineers were able to determine the cause of the problem and come up with some work-arounds for a second — and final — attempt on Monday, Dec. 7.
Now over four months after the historic and long-awaited flyby of Pluto by New Horizons, planetary scientists have had a steady stream of unprecedented data arriving on Earth from the outwardly-speeding spacecraft. We’ve learned more about Pluto in the past few months than we had over the decades before and the information is still being analyzed — and is still coming. This surprising little world and its strange family of mismatched moons, 33 times farther from the Sun than us, has become in the latter half of 2015 the scientific “star of the Solar System.” (Take that all you can’t-be-a-planet folks!)
“It’s hard to imagine how rapidly our view of Pluto and its moons are evolving as new data stream in each week. As the discoveries pour in from those data, Pluto is becoming a star of the Solar System. Moreover, I’d wager that for most planetary scientists, any one or two of our latest major findings on one world would be considered astounding. To have them all is simply incredible.”
– Dr. Alan Stern, New Horizons Principal Investigator, SwRI