A strange triangle-shaped galaxy observed by Hubble

Halton Arp was a brilliant American astronomer who believed that his observations of exotic galaxies challenged the Big Bang theory. He thus compiled an atlas of hundreds of these objects, on which the Hubble telescope made several interesting zooms. NASA and ESA regularly publish space telescope images of these galaxies, the most recent of which … Read more

Alcyonea, the largest radio galaxy ever observed

3 billion light-years from our tiny planet lurks a galaxy unlike any we’ve ever seen before. In fact, Alcyonée is a giant radio galaxy measuring 16.3 million light-years across, making it the largest known structure of galactic origin. In Greek mythology, Alcyoneus was one of the greatest giants, the son of Ouranos (Heaven) and Gaia … Read more

Discovery of HD1, the most distant galaxy from Earth

It is a new record that takes us far in space and time. Researchers from Harvard (USA) announced on April 7, 2022 in the journal Astrophysical Journal the discovery of the most distant galaxy ever observed. “HD1” is 13.5 billion light years away from us. That’s 100 million more than “GNz11”, the defending champion. And … Read more

Discovery of a primordial galaxy beginning its rotation

It dates from the beginning of the universe, more precisely about 500 million years after the Big Bang. It is the oldest rotating galaxy ever observed and provides clues to the formation of primordial galaxies. Scientists have just discovered galaxygalaxy furthest rotation ever observed. It crossed over 13.26 billion light years before reaching us and … Read more

The Alma radio telescope is making progress on the trail of galaxy killers

One of the great mysteries of astrophysics concerns the death of galaxies, that is, we find that some of them have not formed stars for billions of years, largely emptied of the necessary material. We suspected explosions of supernovae or movements in the intergalactic medium, in the clusters that blew the gas of the galaxies. … Read more

The Alma radio telescope is making progress on the trail of galaxy killers

One of the great mysteries of astrophysics concerns the death of galaxies, that is, we find that some of them have not formed stars for billions of years, largely emptied of the necessary material. We suspected explosions of supernovae or movements in the intergalactic medium, in the clusters that blew the gas of the galaxies. … Read more

The origin of the Fermi bubbles in the center of the Milky Way is being questioned

You may also be interested [EN VIDÉO] Experience the first image of the supermassive black hole at the center of its galaxy! A big step for our knowledge of these mysterious objects… We have been waiting for it since 2019, at the same time as the first image of the black hole M87*. It’s finally … Read more

Reconstruction of the motions of galaxies for 11.5 billion years

In our Universe, nothing is forever. Nothing is static either. That comets Come and go. The earth revolves around Sun. That stars moving in The Milky Way. And even galaxies have a hard time keeping up. Movements that often exceed the time scales that our modest human lives have accustomed us to. What we offer … Read more

Giant black holes affect star birth

You will also be interested [EN VIDÉO] Closer to black holes Dive into the heart of black holes, these stars that consume all matter and even light! With several millions, even billions of plenty sun, the supermassive black holes are located at the center of large galaxies. That The Milky Wayour galaxy, is home to … Read more

Giant black holes at the center of galaxies affect star birth

You will also be interested [EN VIDÉO] Closer to black holes Dive into the heart of black holes, these stars that consume all matter and even light! With several millions, even billions of plenty sun, the supermassive black holes is located in the center of large galaxies. That The Milky Wayour galaxy, is home to … Read more