New Horizons' Next Target May Resemble Rosetta's Comet 67P Or Be A Binary Pair

One artist’s concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA’s New Horizons mission. This binary concept is based on telescope observations made at Patagonia, Argentina on July 17, 2017 when MU69 passed in front of a star. New Horizons theorize that it could be a single body with […]

Leading Planetary Scientists Discuss Prospect of Missions to Uranus and Neptune

Uranus and Neptune: the Solar System’s unique ice giant planets, of which we only got brief glimpses during the Voyager 2 flybys in the 1980s, beckon for further, more detailed exploration. Image Credit: NASA

Last year’s historic close flyby of Pluto by NASA’s New Horizons spacecraft put the outer Solar System firmly back […]

New Study Suggests Abundance of Nitrogen on Pluto May Be Due to Cryovolcanism

A spectacular image of Pluto’s atmosphere backlit by the Sun, taken during New Horizons’ closest approach to Pluto on July 14. The bright halo of Pluto’s atmosphere is caused by the scattering of sunlight from nitrogen, a compound that dominates the planet’s atmosphere. A new study suggests that the source of all this […]

The Science of Pluto: Great Expectations (Part 3)

An artist’s rendering of Pluto’s surface, with Charon looming large on the horizon. The double-planet Pluto-Charon system, represent the last unexplored frontier of the Solar System, which will be unveiled in all its glory in just a few days from now. Image Credit: National Space Society

“We are living through a remarkably privileged […]

The Science of Pluto: The Sails of Charon (Part 2)

An artist’s concept of Charon (at front), with Pluto seen in the background. Equally as fascinating and exciting as Pluto, Charon has sported its own set of intriguing mysteries and unanswered questions, some of which include the exciting possibility for the existence of geyser-like surface eruptions, underground layers of liquid water, and even […]