X-rays of a specific wavelength emanating from the hearts of galaxies and galaxy clusters could be signs of dark matter particles, according to two independent teams of astronomers whose work has been featured in the journal The Astrophysical. Journal.
The Hubble telescope does not stop providing information about the history of the universe. In one of his latest images, he has obtained the best photo of some of the most distant and oldest galaxies, some 12,000 million light years away, thanks to the fact that the Abell 2744 cluster or 'Pandora cluster' has functioned as a kind of natural telescope gigantic.
The European Southern Observatory (ESO) celebrates this month of October 50 years since the signing of its founding agreement. After half a century, ESO has become the most productive ground-based astronomical observatory in the world, operating three world-class observatories in Chile: La Silla, Paranal and Chajnantor.
ESA's Euclid mission, designed to explore the dark side of the Universe, has already started the construction phase. This mission was selected in October 2011 with Solar Orbiter as one of the first two M-class missions of the Agency's Cosmic Vision 2015-2025 program. The committee has agreed to draft a memorandum of understanding between ESA and NASA through which the US space agency will collaborate on the mission by providing the infrared detectors.
Coinciding with the celebration of its 50th anniversary, the European Southern Observatory (ESO) has launched the construction of the largest optical / infrared telescope in the world. The European Extremely Large Telescope (E-ELT) will be a 39.3 meter diameter segmented mirror telescope, located in Cerro Armazones (Chile). It will be four to five times larger than current state-of-the-art installations of this type, and will gather around 15 times more light.
NASA's Hubble Space Telescope has captured a new image of the spiral galaxy known as ESO 498-G5. An interesting feature of this galaxy is that its spiral arms reach all the way to the center itself, so the core of ESO 498-G5 looks a bit like a miniature spiral galaxy. This type of structure contrasts with the star-filled elliptical centers present in many other spiral galaxies, which appear as incandescent masses.
A spectrometer designed by astronomers at the University of California (USA) will allow scientists to study the first galaxies that formed in the Universe.
It is the largest group of galaxies, the hottest, and the one that generates the most X-rays of all those discovered so far. And it has been found by US and Chilean astrophysicists with the help of the Atacama Cosmological Telescope and NASA's Chandra X-ray Observatory. Officially known as ACT-CL J0102-4915, the group of galaxies, located more than 7,000 million light years from Earth, has been nicknamed "El Gordo" by its discoverers.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
