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

Opposition surge comet

Emily Lakdawalla • April 12, 2016 • 1

Today, the Rosetta OSIRIS team's Image of the Day is this highly unusual view of the comet with the Sun very nearly behind the spacecraft.

Running Down a Comet

Joseph Masiero • January 26, 2016

The Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) telescope has discovered its first comet of 2016.

Worth the wait: First public release of Rosetta science camera images of comet 67P

Emily Lakdawalla • December 17, 2015 • 4

Finally! It has been a long wait, but so worth it: the Rosetta OSIRIS science camera team has delivered the first pile of data from the rendezvous with comet 67P to ESA's Planetary Science Archive. I have spent a good chunk of the last three days playing with the data, and it's spectacular.

A Rosetta OSIRIS picture of comet 67P that's only hours old

Emily Lakdawalla • December 11, 2015 • 2

ESA announced today a new website at which the OSIRIS team will now be releasing images on a regular basis -- at least one per week -- and they will be recent. Even better news, all OSIRIS data taken through September 16, 2014 has been handed to ESA and its release is expected next week.

DPS 2015: Solar System Formation

Erika Nesvold and John Debes • November 20, 2015 • 2

At the 47th Division of Planetary Systems meeting, many presentations touched on some of the most contentious and poorly known aspects of how planets form.

DPS 2015: A little science from Rosetta, beyond perihelion

Emily Lakdawalla • November 18, 2015 • 2

Updated numbers for physical properties of the comet, and a few interesting images of surface features and surface changes on Churyumov-Gerasimenko.

ESA mission updates

Emily Lakdawalla • November 04, 2015

There have been several important pieces of news about European missions in the last month: Rosetta's fate has been determined; ExoMars Trace Gas Orbiter's launch is slightly delayed; and they have selected a landing site for the ExoMars rover.

Checking in on Uranus and Neptune, September 2015 edition

Emily Lakdawalla • September 22, 2015 • 5

There are no spacecraft at Uranus or Neptune, and there haven't been for 30 and 25 years, respectively. So we depend on Earth-based astronomers to monitor them, including Damian Peach.

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?

How the duck got its neck: Rapid temperature changes from self-shadowing may explain 67P's unusual activity and shape

Emily Lakdawalla • September 11, 2015 • 5

When Rosetta approached comet Churyumov-Gerasimenko last summer, both its shape and its activity were surprising. It looked like two comets welded together at a skinny neck. A new paper explains how the neck may be steepening itself.

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