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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

OSIRIS-REx Progressing Through Environmental Testing

Dante Lauretta • November 16, 2015 • 3

The OSIRIS-REx spacecraft continues to make steady progress toward launch in September 2016. Environmental testing is now underway to ensure the spacecraft is ready for the many conditions it will experience over its mission.

DPS 2015: First reconnaissance of Ceres by Dawn

Emily Lakdawalla • November 12, 2015 • 7

This is the first major meeting since Dawn's arrival at Ceres, and despite competition with Pluto surface science there was a well-attended Ceres talk session on Monday and poster session on Tuesday.

Dawn Journal: A Bounty of Data

Marc Rayman • October 30, 2015 • 16

Dawn has completed another successful campaign to acquire a wealth of data in its exploration of dwarf planet Ceres, providing our clearest and most complete view ever of this world.

Dawn data from Ceres publicly released: Finally, color global portraits!

Emily Lakdawalla • October 22, 2015 • 5

A few days ago, Dawn officially released the first big pile of data from the Ceres mission phase. Thanks to the public release, I can show you color global portraits of Ceres.

OSIRIS-REx Spacecraft Assembly Nearly Complete

Dante Lauretta • October 14, 2015

The OSIRIS-REx mission continues to make great progress and is in the Assembly, Test, and Launch Operations (ATLO) phase of the program. There's been many great accomplishments leading up to this point.

How do you pronounce "Ryugu?"

Emily Lakdawalla • October 07, 2015 • 2

With some help from astronomer Elizabeth Tasker and a group of astronomy graduate students from the University of Hokkaido, I learn how.

Hayabusa2's target asteroid has a name!

Emily Lakdawalla • October 05, 2015 • 2

JAXA announced today the results of the naming contest for Hayabusa2. The target of the sample-return mission, formerly known as 1999 JU3 and still numbered 162173, is now named 162173 Ryugu.

Favorite Astro Plots #1: Asteroid orbital parameters

Emily Lakdawalla • October 01, 2015 • 3

This is the first in a series of posts in which scientists share favorite planetary science plots. For my #FaveAstroPlot, I explain what you can see when you look at how asteroid orbit eccentricity and inclination vary with distance from the Sun.

Dawn Journal: 8 Years in Space

Marc Rayman • September 28, 2015 • 18

On the 8th anniversary of the launch of the Dawn spacecraft, Chief Engineer and Mission Director Marc Rayman gives his annual summary of Dawn’s progress on its interplanetary travels.

Searching for the Origins of Earth’s Water

Van Kane • September 17, 2015 • 1

Three recently proposed low-cost space missions all aim to answer the same question: Where did Earth's abundant water come from?

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