Tag Archives: coma

Imaging tiny comet dust in 3D

Rosetta has imaged the smallest grains of Comet 67P/Churyumov-Gerasimenko’s dust yet, with its Micro-Imaging Dust Analysis System, MIDAS.   MIDAS works by collecting and then physically scanning grains with an Atomic Force Microscope. This uses a very...

Comet’s dust trail stretches over 10 million km

Comet 67P/Churyumov-Geraimenko’s dust trail has been observed to stretch at least 10 million kilometres in the latest images taken by professional astronomers working on the ground-based observing campaign. The image mosaic shown here is composed of four...

NAVCAM archive update

796 NAVCAM images were just added to the Archive Image Browser. They cover the period 26 August to 20 October 2015, which includes beautiful post-perihelion images, and the comet from afar during Rosetta’s far excursion. The latest images...

First detection of molecular oxygen at a comet

ESA’s Rosetta spacecraft has made the first in situ detection of oxygen molecules outgassing from a comet, a surprising observation that suggests they were incorporated into the comet during its formation. This news story is mirrored from the main...

Rosetta and Philae status update

Over the last few weeks, Rosetta has been flying along the terminator plane of Comet 67P/Churyumov-Gerasimenko, at distances from 180 km down to 153 km and at latitudes between 0 and 54 degrees, in order to find...

Observing comet 67P/C-G with the Very Large Telescope

Guest post by Colin Snodgrass from the Max Planck Institute for Solar System Research, Germany. Colin coordinates a consortium of professional astronomers observing comet 67P/Churyumov-Gerasimenko from Earth. Since rendezvousing with Comet 67P/C-G in early August, Rosetta has...

Anatomy of a Comet (infographic)

With one day left until Rosetta’s rendezvous with comet 67P/Churyumov-Gerasimenko, it’s time to do a little homework and review what we know so far about these fascinating wanderers of the sky. Have a look at our latest...