Tag Archives: Comets

The comet C/2013 A1 Siding Spring passed close to Mars

Yesterday the comet C/2013 A1, also known as Siding Spring, passed very close to Mars. The distance from the planet was as low as about 140,000 km (about 87,000 miles), one third of the distance of the Moon from Earth, very close in astronomical terms. The event was followed by several telescopes but nearby ther was was the Earth’s “star fleet” consisting of NASA’s probes and rovers, ESA’s Mars Express probe and the Indian MOM – aka Mangalyaan – probe.
Continue reading

Posted in Astronomy / Astrophysics | Tagged , | Leave a comment

The Rosetta space probe takes a selfie with the comet 67P/Churyumov–Gerasimenko

Using a camera included in the Comet Infrared and Visible Analyser (CIVA) of its lander Philae, a few days ago the Rosetta space probe took a really special selfie. On October 7, it was at a distance of about 16 km (about 10 miles) from the comet 67P/Churyumov-Gerasimenko, which appears in the background of the photo, above one of the spacecraft’s solar panels.
Continue reading

Posted in Astronomy / Astrophysics | Tagged , | Leave a comment

The first map of the comet 67P/Churyumov-Gerasimenko has been unveiled

A group of scientists who are studying the comet 67P/Churyumov-Gerasimenko has created a map based on the analysis of surface images taken by the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) instrument of the Rosetta space probe. The result is that the comet can be divided into different regions that have distinct physical appearancec. This map shows that it’s much more than a large rock mixed with ice.
Continue reading

Posted in Astronomy / Astrophysics | Tagged | Leave a comment

The Rosetta space probe is about to start its descent towards the comet 67P/Churyumov-Gerasimenko

The Rosetta space probe reached the comet 67P/Churyumov-Gerasimenko almost a month ago but remained at a distance from it of not less than 52 kilometers (about 32 miles). ESA’s scientists spent the last few weeks studying the comet, also to determine the route to follow for the probe and the Philae lander. Today, Rosetta is scheduled to start the series of maneuvers that in a few days will bring it at a distance of approximately 29 km (about 18 miles) from the comet to arrive later about 10 km (a bit more than 6 miles) from it.
Continue reading

Posted in Astronomy / Astrophysics | Tagged | 1 Comment

The Rosetta space probe has reached the comet 67P/Churyumov-Gerasimenko

The Rosetta space probe has just completed the last series of maneuvers that brought it into the orbit of the comet 67P/Churyumov-Gerasimenko. This stage of the Rosetta mission started some time ago and in recent weeks it sent images and other data that were very interesting but now, after more than 10 years of traveling, the main phase of its mission is starting.
Continue reading

Posted in Astronomy / Astrophysics | Tagged | 2 Comments

The Rosetta space probe revealed new surprising information about the comet 67P/Churyumov-Gerasimenko

ESA’s Rosetta space probe is continuing its approach to the comet 67P/Churyumov-Gerasimenko and the photos that are coming are more and more decomaed. In July, the images of the comet’s nucleus had revealed its binary nature, now scientists but also merely curious people can see it in a much better quality. Its coma begins to show an interesting activity too and Rosetta has provided more surprising data.
Continue reading

Posted in Astronomy / Astrophysics | Tagged , | 1 Comment