The Athena (Advanced Telescope for High ENergy Astrophysics) mission is the second long-range space mission (L2) of the long term program “Cosmic Vision” of the European Space Agency (ESA). This mission is dedicated to the scientific theme “The hot and Read More …
Black holes are divided, based on their mass, into supermassive black holes (SMBHs) with masses more than 1 million Suns together that reside in the centre of the galaxies and stellar black holes with masses up to 20 times the Read More …
Institute of Astrophysics – FORTH“Hunting gravitational waves for 25 years with European Pulsar Timing Array data”byDr. Nicolas Caballero(Kavli Institute for Astronomy & Astrophysics, Peking University) Tuesday, 26 May 2021 at 13:00 Athens time (UTC + 3:00) Click here to attend! Read More …
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 …
