rosetta is now on a path to a close fly-by, the following link shows an animation of what is the flight plan: http://www.esa.int/spaceinimages/Images/2015/02/Rosetta_s_close_flyby

the comet is getting closer to the sun as can be seen:



Comet on 31 January 2015 – NavCam
This four-image mosaic comprises images taken from a distance of 28.0 km from the centre of Comet 67P/Churyumov-Gerasimenko on 31 January. The image resolution is 2.4 m/pixel and the individual 1024 x 1024 frames measure 2.4 km across. The mosaic measures 4.6 x 4.3 km.

and here anothe, slightly newer one:




Comet on 3 February 2015 – NavCam
This four-image mosaic comprises images taken from a distance of 28.7 km from the centre of Comet 67P/Churyumov-Gerasimenko on 3 February. The image resolution is 2.4 m/pixel and the individual 1024 x 1024 frames measure 2.5 km across. The mosaic measures 4.2 x 4.6 km.

now rosetta is on it's round-trip to get close to the comet but first it is getting a little further away



Comet on 6 February 2015 – NavCam
This single frame Rosetta navigation camera image was taken from a distance of 124 km from the centre of Comet 67P/Churyumov-Gerasimenko on 6 February 2015. The 1024 x 1024 pixel image frame has a resolution of 10.6 m/pixel and measures 10.8 km across. The image is processed to bring out the details of the comet's activity.
The image is the first single frame image capturing the entire comet nucleus since leaving bound orbits last week.

slightly closer than the last



Comet on 9 February 2015 – NavCam
This single frame Rosetta navigation camera image was taken from a distance of 105 km from the centre of Comet 67P/Churyumov-Gerasimenko on 9 February 2015. The image has a resolution of 8.9 m/pixel and the crop shown here measures 9.1 km across. The image is processed to bring out the details of the comet's activity.

the close fly-by by rosetta put it back into the news:

http://phys.org/news/2015-02-rosetta-space-probe-sharp-close-up.html
http://www.dailymail.co.uk/sciencetech/article-2955782/Rosetta-space-probe-takes-sharp-close-images-comet.html
http://www.ctvnews.ca/sci-tech/rosetta-space-probe-captures-stunning-details-in-images-of-comet-1.2238312

and from the esa team:



Comet on 14 February from 8.7 km
On 14 February 2015, Rosetta swooped over the surface of Comet 67P/Churyumov–Gerasimenko at a distance of just 6 km. The closest approach took place at 12:41 GMT over a region known as Imhotep, which is on the larger of the comet’s two lobes.
The image reveals the contrasting terrains seen on this comet. Layered and fractured exposed surfaces contrast against expanses of smooth, dust-covered terrain. In some places, such as to the lower right of this image, the faint outline of raised near-circular objects with smooth surfaces can be seen. Elsewhere, boulders ranging in size from a few metres to a few tens of metres are scattered across the surface. The largest boulder, seen to the upper right, is named Cheops.
As well as providing the opportunity to take close-up high-resolution images of the surface, flybys like this also allow Rosetta’s instruments to sample the innermost parts of the comet’s atmosphere, or coma, to understand the connection between the source of the observed activity and the wider coma.
The spacecraft has now begun a new phase of observations, whereby it will continue to fly past at a range of distances, typically between about 15 km and 100 km.
The more distant flybys will provide the broader context of a wide-angle view of the nucleus and its growing coma as the comet moves towards perihelion – the closest approach to the Sun along its orbit. Rosetta is today 345 million kilometres from the Sun; at perihelion, on 13 August this year, it will be at about 186 million kilometres, between the orbits of Earth and Mars.
The image presented here was taken with the navigation camera shortly after closest approach, at 14:19 GMT, from a distance of 8.7 km. It has a scale of 0.74 m/pixel and measures 0.76 km across.

here a picture in two versions



NAVCAM image of Comet 67P/C-G taken on 15 February from a distance of 125 km to the comet centre. The image has been processed to bring out the details of the comet’s activity. The exposure time of the image is 4 seconds. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0


The original 1024 x 1024 pixel image frame for today's entry is provided below:

here a picture from the distance



Comet on 16 February 2015 – NavCam
This four-image mosaic comprises images taken from a distance of 226.5 km from the centre of Comet 67P/Churyumov-Gerasimenko on 16 February. The image resolution is 19.3 m/pixel and the individual 1024 x 1024 frames measure 19.8 km across. The mosaic measures 37.4 x 37.2 km.

rosetta is continuing on it's 'road-trip' around the comet to take measurement and pictures from various distances, here another photo



Comet on 18 February 2015 – NavCam
This single frame Rosetta navigation camera image was taken from a distance of 198 km from the centre of Comet 67P/Churyumov-Gerasimenko on 18 February 2015. The 1024 x 1024 pixel image frame has a resolution of 16.9 m/pixel and measures 17.3 km across. The image is processed to bring out the details of the comet's activity.

and from another angle a little closer



Comet on 20 February 2015 – NavCam
This single frame Rosetta navigation camera image was taken from a distance of 118.5 km from the centre of Comet 67P/Churyumov-Gerasimenko on 20 February 2015. The 1024 x 1024 pixel image frame has a resolution of 10.1 m/pixel and measures 10.3 km across. The image is processed to bring out the details of the comet's activity.