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Stories, updates, insights, and original analysis from The Planetary Society.
OSIRIS-REx stable in Bennu orbit, team refines sample collection plans
The team has yet to find a Bennu sample site that matches their pre-arrival expectations, meaning their plans will probably have to change.
Hayabusa2 team sets date for sample collection, considers two touchdown sites
Japan's Hayabusa2 spacecraft will try to collect a sample from asteroid Ryugu during the week of 18 February, mission officials said during a press briefing last week.
News brief: OSIRIS-REx arrives in orbit at Bennu
Today at 19:43 UTC, OSIRIS-REx entered orbit at asteroid Bennu. In so doing, it accomplished both the tightest orbit (at an altitude under 2 kilometers) and the orbit of the smallest object ever. UPDATE: Early science results from OSIRIS-REx discussed at New Horizons MU69 flyby event.
Dawn Journal: Final Transmission
After more than 11 years in deep space, after unveiling the two largest uncharted worlds in the inner solar system, after overcoming myriad daunting obstacles, Dawn's interplanetary adventure has come to an end.
Flying By Home
Vicky Hamilton explores how OSIRIS-REx used its Earth flyby to test instruments on the way to asteroid Bennu.
News brief: OSIRIS-REx finds water on Bennu
OSIRIS-REx team members held a press briefing today at the 2018 American Geophysical Union meeting, and announced that the mission has already found water on asteroid Bennu.
"We have arrived!" OSIRIS-REx is officially at asteroid Bennu
After a 2-billion-kilometer journey that began in September 2016, NASA's OSIRS-REx spacecraft has arrived at Bennu.
Hayabusa2 prepares for holiday break as Sun passes between Earth and asteroid Ryugu
The spacecraft will spend the end of 2018 a safe distance from Ryugu, as the Sun's position makes communications with Earth spotty.
Collecting a sample from asteroid Ryugu is going to be dicey
Japan's Hayabusa2 spacecraft was scheduled to touch down on Ryugu later this month, but that has been delayed to early 2019.
Dawn Journal: 11 Years in Space
Dawn is celebrating its 11th anniversary of spaceflight. This is the last dawnniversary the spacecraft will see.
Heiligenschein Throughout the Solar System
When planetary scientist Brittney Cooper was scrolling through the downlinked images of Hayabusa2’s approach of asteroid Ryugu, a familiar sight caught her attention.
MASCOT landing on Ryugu a success
For 17 hours on 3 October, the Mobile Asteroid Surface Scout (MASCOT) lander sent data to the waiting Hayabusa2 orbiter from multiple locations on Ryugu.
Japan's asteroid hoppers deliver new batch of incredible images
Pics of Ryugu's surface show loose piles of gravel strewn with larger rocks and boulders.
Asteroids have been hitting the Earth for billions of years. In 2022, we hit back.
DART is a test of the kinetic impactor technique, a potential method to deflect an asteroid on course to impact the Earth.
Japan's Hayabusa2 spacecraft successfully drops rovers on asteroid Ryugu
The two small spacecraft are the size and shape of cheese wheels, and can autonomously hop around the surface.
Feast your eyes on comet 67P's surface, with depth cues added
Mattias Malmer made it a little easier to figure out what Philae really saw in 2014.
Hayabusa2 stops short of close approach on first touchdown rehearsal
Hayabusa2 didn’t quite make it down to its intended 60-meter distance from asteroid Ryugu yesterday. There is nothing wrong with the spacecraft; it’s healthy and returning to its home position. The team will adjust parameters and give it another try in the future.
Dawn Journal: A Bit of Perspective
Like its human colleagues, Dawn started out on Earth, but now its permanent residence in the solar system, Ceres, is far, far away. Let's bring this cosmic landscape into perspective.
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.