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Stories, updates, insights, and original analysis from The Planetary Society.
Some big moons in the Kuiper belt
In a new preprint, Mike Brown and Bryan Butler show evidence that two Kuiper belt moons are even bigger than we used to think. They are Eris' moon Dysnomia, and Orcus' moon Vanth.
New Horizons prepares for encounter with 2014 MU69
Throughout 2018, New Horizons will cruise toward its January 1 encounter with 2014 MU69. Preparations for the flyby are nearly complete.
Dawn Journal: 4 Billion Miles
Permanently in residence at dwarf planet Ceres, Dawn is now preparing to add some finishing touches to its mission.
Planetary Society asteroid hunter snags picture of interstellar visitor ʻOumuamua
Asteroid hunters named the first-known interstellar asteroid ʻOumuamua as a nod to its scout-like traits.
Dawn Journal: Second Extended Mission
Building on the successes of its primary mission and its first extended mission, NASA has approved the veteran explorer for a second extended mission.
Explore spinnable Saturn and Jupiter moons with Google Maps
Google Maps released several new map products that allow you to see the locations of named features on many solar system planets and non-planets, spinning them around in space with your mouse.
#DPS2017: Progress report on Mars Reconnaissance Orbiter images of comet C/2013 A1 Siding Spring
Three years ago, on October 19, 2014, comet C/2013 A1 Siding Spring passed within 138,000 kilometers of Mars. At the 2017 meeting of the Division for Planetary Sciences of the American Astronomical Society, we heard a progress report on Mars orbiter imaging of the comet's nucleus.
Planetary Society-funded telescopes help find ring around Haumea, a distant dwarf planet
Haumea has a ring! Two telescopes used in the discovery—one in Slovenia, and one in Italy—received funding from The Planetary Society's Shoemaker Near Earth Object (NEO) Grant program, which helps amateur astronomers find, track and characterize near-Earth asteroids.
Dawn Journal: 10 Years in Space
A decade after leaving its first home in the solar system, Dawn is healthy and successful at its current residence around Ceres.
Could the total solar eclipse reveal a comet?
Next week's solar eclipse will reveal the Sun's corona, nearby bright planets and stars, and, if we get extremely lucky, a comet!
In total eclipse of a star, New Horizons' future flyby target makes its presence known
The team reported two weeks ago that the first attempts at observing 2014 MU69 were unsuccessful. But in their third try, on July 17, astronomers in Argentina saw the telltale sign of MU69's presence: a stellar wink.
Dawn Journal: Still More Science
Orbiting the only dwarf planet inside the orbit of Neptune, Dawn is healthy and continuing to carry out its assignments at Ceres, which includes keeping an eye on cosmic rays.
When New Horizons' next target passed in front of a star, this scientist was watching from Argentina
A team of scientists recently traveled to rural Argentina in the hopes of catching New Horizons' next target—Kuiper Belt object MU 69—crossing in front of a distant star.
Dawn Journal: Adaptations
On the other side of the solar system, invisible by virtue both of the blinding glare of the sun and by the vastness of the distance, Dawn is continuing its remarkable cosmic adventure.
Dawn Journal: On Course for Opposition
The Dawn spacecraft is about to swing into a new orbital path to observe the enigmatic
Dawn Journal: Bonus Plans
Now in its third year of orbiting a distant dwarf planet, a spacecraft from Earth is as active as ever. Like a master artist, Dawn is working hard to add fine details to its stunning portrait of Ceres.
Dawn Journal: Intricate Maneuvers
The Dawn mission is executing an ambitious bonus goal recently devised for its extended mission. Mission Manager and Chief Engineer Marc Rayman brings us his monthly update.
Citizen scientist spots changes on Rosetta's comet
Citizen scientist and self-described
Dawn Journal: A New Perspective on Ceres
Dawn has moved into its sixth orbital phase, with a new sun angle that provides an opportunity to gain a new perspective on the asteroid Ceres.
Lucy and Psyche Asteroid Missions
Last week, NASA selected its thirteenth and fourteenth missions in its low cost Discovery program.