Dwarf galaxy eaten by neighbour!

Astronomers have noticed stellar streams around the galaxy M 63. They say this is a clear sign that the galaxy has digest a dwarf neighbour at some stage. Although this observation has also been made for distant galaxies. The findings are being written up in a astronomical journal.
They claim that it could shed light on the evolution of galaxies.As dwarf galaxies are digested by spiral galaxies, they form structures called stellar streams which are long strips of stars produced by the stretching action of tidal forces. Events like these have been observed in our immediate neighbors (the "local group" of galaxies) for over a decade.David Martínez-Delgado from the Max Planck Institute for Astronomy in Germany carried out a survey of spiral galaxies at distances of up to 50 million light-years from Earth.He discovered the signs of spiral galaxies eating dwarfs (claiming that this was the first time this has been observed in galaxies beyond the "Local Group")Surprisingly, the research was done with the telescopes of amateur astronomers.For his observations, he used telescopes with apertures between 10cm and 50cm, equipped with CCD cameras. He now plan to use the data to test computer predictions of the frequency of features such as stellar streams.

Black hole blows big gas bubble

This is, hopefully, one of many astronomy articles. Each one will cover a recent event and ask a question (answer the question correctly and get a prize). Please enjoy…

A big gas bubble was produced by a small black hole. The fiery gas bubble was 1,000 light years across. The gas expanded due to powerful particle ‘jets’ released by the black hole. The observation was made in Chile by a very big telescope and by NASA’s Chandra space observatory. When a black hole swallows matter they are known to let of high amounts of energy, thus heating the gas ball.

Astronomers say that these particle jets where the biggest they had ever seen. Roberto Soria from the Mullard Space Science Laboratory at University College London said that “If the black hole were shrunk to the size of a soccer ball, each jet would extend from the Earth to beyond the orbit of Pluto”. They are surprised because the size of the black hole was small compared to others yet it produced these huge jets and a hot gas ball.

If any readers want to locate it, it is in the spiral galaxy NGC 7793. And finally, for the question. Are there any pictures of black holes? Thanks for reading. Check again for more articles and news!