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Stories, updates, insights, and original analysis from The Planetary Society.
Dawn Journal: Denouement
A fantastic story of adventure, exploration and discovery is reaching its denouement. In the final phase of its long and productive deep-space mission, Dawn is operating flawlessly in orbit around dwarf planet Ceres.
OSIRIS-REx and New Horizons catch first sight of their targets
Both OSIRIS-REx and New Horizons achieved first light on their still-distant targets this week. Between now and the end of 2018, Bennu and 2014 MU69 will turn from points of light into places.
Hayabusa2 prepares to collect samples, leave Planetary Society names on Ryugu
The names were collected by the Society in 2013, and are stored on target markers that will be dropped on the asteroid.
Hayabusa2 Team Announces Ryugu Landing Sites, Initial Science Survey Results
Two months after arrival, the team has reported some preliminary facts about Ryugu. They also announced the selection of candidate landing sites for the spacecraft sample collection, for the German-built MASCOT hopper, and for the MINERVA-II microrovers
False alarm: Here's why people thought Opportunity phoned home last week
It was a signal from the Mars Reconnaissance Orbiter, not Opportunity, that showed up on a Deep Space Network dashboard last week.
China's mission to the far side of the Moon will launch in December
The Chang'e-4 spacecraft will launch on December 7 toward a farside landing, making use of a relay satellite to stay in touch with Earth.
Here are some recent postcards from Jupiter
Let's check in on NASA's Juno spacecraft, which completed its 14th close flyby of Jupiter last month.
Chandrayaan-2 launch delayed to 3 January 2019
Chandrayaan-2, expected to launch in October, will now be launching no earlier than 3 January 2019, with its lander and rover touching down in February.
Hayabusa2 descends again, this time to lower than 1000 meters above Ryugu
This week Hayabusa2 completed its closest approach yet to asteroid Ryugu. In a successful gravity measurement experiment on August 6, the spacecraft dipped to within 1 kilometer of the asteroid.
Parker Solar Probe preview: 10 hot facts about NASA's cool mission to the Sun
This weekend, NASA’s Parker Solar Probe spacecraft leaves Earth on a mission to touch the Sun.
Mastcam-Z Team Blog: A Special Team Photomosaic
Mastcam-Z will help the Mars 2020 rover explore the surface of Mars. Dozens of amazing scientists and engineers from across the globe contribute to the development of Mastcam-Z. This year, the team photo was taken with our very own Mastcam-Z testbed unit.
A second successful medium-altitude operation for Hayabusa2
For the second time, JAXA navigators have zoomed their cameras and other instruments in on asteroid Ryugu. The August 1 operation was quicker than the previous one, requiring only 26 hours for the descent, science, and ascent.
The Mars Exploration Rovers Update: Dust Storm Wanes, Opportunity Sleeps, Team Prepares Recovery Strategy
As Opportunity slept in Perseverance Valley under the thick cloud of dust that has blanketed the Red Planet for the last six weeks, scientists who are studying the monster storm that forced the robot field geologist into its hibernation mode are now reporting the tempest has peaked.
Curiosity's organics on Mars
What does it mean that the Mars rover Curiosity found organics in Martian rocks? Emily Lakdawalla translates the science.
Hayabusa2 descends from Home Position to take its first close look at Ryugu
Last week, Hayabusa2 approached to within 6000 meters of the surface of Ryugu, taking new photos. The team has developed a set of terminology to describe Hayabusa2's navigational positions around the asteroid.
Liquid Water on Mars! Really for Real This Time (Probably)
A radar instrument on one of the oldest operational Mars orbiters has discovered possible evidence of present-day liquid water on Mars.
Dawn Journal: Going Out on a High...Or Maybe a Low
Rapidly nearing the end of a unique decade-long interplanetary expedition, Dawn is taking phenomenal pictures of dwarf planet Ceres as it swoops closer to the ground than ever before.
Pretty Pictures of the Cosmos: The Cosmic Ocean
Award-winning astrophotographer Adam Block shares some of his most recent images of our amazing and beautiful universe.
New goodies from asteroid Ryugu!
Two new global views of Ryugu from Hayabusa2, plus a 3-D animation.
The Bounty of Iron Meteorites Found on Mars
Something new and wonderful appeared in the Meteoritical Bulletin Database—an entire listing of meteorites found on Mars by robotic rovers and their science teams from the years 2005–2017.



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