Articles

Emily Lakdawalla

The Rosetta mission will end tomorrow when the spacecraft impacts the comet. ESA took advantage of the presence of hundreds of members of the media to put on a showcase of Rosetta science. If there’s one thing I learned today from all the science presentations, it’s this: Rosetta data will be informing scientific work for decades to come.

Emily Lakdawalla

The European Space Agency has shared plans for the end of the Rosetta mission scheduled for September 30, just three weeks from now. The landing site will be located on the

Emily Lakdawalla

Ever since its landing, Philae has been elusive. It went silent just three days later and never returned any more science data, though it made brief contact with the orbiter last summer. Now, just a month until the planned end of the Rosetta mission, the orbiter has finally located the lander in a stunning high-resolution view of the surface.

Emily Lakdawalla

ESA's comet-chasing Rosetta spacecraft is nearing the end of its mission. Last week, ESA announced when and where Rosetta is going to touch down. And tomorrow, it will forever shut down the radio system intended for communicating with the silent Philae lander.

Emily Lakdawalla

Last week, the Rosetta mission released a large quantity of science data to the worldwide public, including photos from the mission's close observation phase and the Philae landing.

Emily Lakdawalla

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.

Joseph Masiero

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

Emily Lakdawalla

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.

Emily Lakdawalla

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.

Erika Nesvold

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.

Emily Lakdawalla

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

Emily Lakdawalla

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.

Emily Lakdawalla

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.

Van Kane

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

Emily Lakdawalla

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.

Mattias Malmer

Mattias Malmer describes his MacGyver-esque process in creating a homemade aluminum version of 67P/Churyumov–Gerasimenko.

Emily Lakdawalla

A terrific new visualization tool for comet 67/P Churyumov-Gerasimenko demonstrates the value of sharing mission image data with the public. The browser-based tool lets you spin a simulated 3D view of the comet. It began with a 3D model of the comet created not by ESA, but by a space enthusiast, Mattias Malmer.

Bill Dunford

Another round of posters to celebrate historic planetary missions.

Van Kane

Van Kane rounds up some of the latest NASA Discovery mission proposals aiming to explore our solar system's smallest bodies.

Emily Lakdawalla

Last week, the European Space Agency released the first set of images from Rosetta's navigational camera, or NavCam, from the phase of the mission that followed the Philae landing. That makes more than 3500 NavCam images that have been released from the comet phase of the mission.