When matter from the galaxies starts to accrete into super massive black holes, an enormous amount of energy is released across the whole electromagnetic spectrum (from radio emission up to X- and γ- rays). This constitutes the characteristic signature of Read More …
8th Monthly Colloquium of Hellenic Astronomical Society (HelAS) – 11 May 2021“Insights into Dark Matter and Dark Energy using Strong Gravitational Lensing observations of Galaxies, Quasars, and Supernovae”byDr. Leonidas Moustakas (JPL/Caltech, USA) Tuesday, 11 May 2021 at 18:00 Athens time Read More …
Tracing back a ghostly particle from a star-shredding supermassive black hole, scientists have uncovered a gigantic cosmic particle accelerator. Some 700 million years ago, subatomic particles called neutrinos were hurled at nearly the speed of light toward Earth as a Read More …
Astronomers using NASA’s Chandra X-ray Observatory have announced the discovery of an important type of titanium blasting out from the center of the supernova remnant Cas A, a result that could be a major advance in understanding how some massive Read More …
Thanks to the recent groundbreaking observational results, Multi-messenger astrophysics is emerging as a distinct discipline with the great potential to provide insights into the properties and processes of the physical universe. This new discipline combines the complementary information carried by Read More …
A pair of orbiting black holes millions of times the Sun’s mass perform a hypnotic dance in this NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas – called Read More …
Astronomers have detected X-rays from Uranus for the first time, using NASA’s Chandra X-ray Observatory. This result may help scientists learn more about this enigmatic ice giant planet in our Solar System. Uranus is the seventh planet from the Sun Read More …
A new project using sonification turns astronomical images from Chandra and other telescopes into sound. As the cursor moves across the images, sounds represent the position and brightness of the sources in which each telescope plays a different instrument. Previously, Read More …
High-Energy Astrophysics studies astronomical objects that release electromagnetic radiation at highly energetic wavelengths that is X-rays and gamma-rays. These wavelengths come from matter with very high temperatures revealing a hot and energetic Universe! AHEAD2020 (Activities in the High Energy Astrophysics Read More …
Astronomers may have found the most distant supermassive black hole with a jet detected in X-rays using NASA’s Chandra X-ray Observatory. The source of this jet is a quasar — a rapidly growing supermassive black hole — named PSO J352.4034-15.3373 Read More …
