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News brief: OSIRIS-REx arrives in orbit at Bennu

Emily Lakdawalla • December 31, 2018 • 1

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

Marc Rayman • December 21, 2018 • 10

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

The Planetary Report • December Solstice 2018

Vicky Hamilton explores how OSIRIS-REx used its Earth flyby to test instruments on the way to asteroid Bennu.

Dawn Journal: 11 Years in Space

Marc Rayman • October 19, 2018 • 8

Dawn is celebrating its 11th anniversary of spaceflight. This is the last dawnniversary the spacecraft will see.

Heiligenschein Throughout the Solar System

Brittney Cooper • October 16, 2018 • 2

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

Emily Lakdawalla • October 05, 2018 • 4

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.

Hayabusa2 stops short of close approach on first touchdown rehearsal

Emily Lakdawalla • September 13, 2018 • 1

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

Marc Rayman • September 05, 2018 • 11

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

Marc Rayman • September 04, 2018 • 7

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

Emily Lakdawalla • August 29, 2018 • 3

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.

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