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AHEAD2020

  • Home
  • About AHEAD2020
  • Open days
    • National Observatory of Athens (Penteli)
    • National Observatory of Athens (Thissio)
  • Events
  • Videos
    • AHEAD
      • Virtual Reality videos
        • The Hot and Energetic Universe – Virtual Reality (VR) edition
        • The X ray Universe – Virtual Reality (VR) edition
      • Hot and Energetic Universe – El Universo caliente y energético (Spanish Narration)
      • The Hot and Energetic Universe (flat version, HDTV)
      • The Hot and Energetic Universe (short version)
      • Short version of “The Hot and Energetic Universe” (Greek narration and subs)
      • The Hot and Energetic Universe (version for DOME theatres)
      • Black Holes
      • Gamma Ray Bursts
      • Gamma ray astronomy
      • Why Observe from Space
      • AHEAD advertising video
      • AHEAD video for National Observatory of Athens
    • NOA
      • NOA
    • Documentaries
    • Public Lectures
    • HEASARC
      • ESO
    • ESA
  • Images
    • HEASARC
    • ESO
    • APOD
    • HEAPOW
  • Educational
    • Booklet for Dome Video (ESO website)
    • Booklet for Dome Video
    • Guide for visitors (Dome Video)
    • Posters
      • About AHEAD
      • The Hot and Energetic Universe
      • The Hot and Energetic Universe (full version, ~300MB)
      • Black Holes and Supernovae
      • Black Holes and Supernovae (full version, ~300MB)
      • AGN
      • AGN (full version, ~2MB)
      • Gravity
      • Gravity (full version, ~2MB)
      • X-ray Observations/Surveys
      • X-ray Observations/Surveys (full version, 2MB)
    • Below age of 14
      • Star child (NASA)
      • ESA kids (ESA)
      • Presentations
    • Above age of 14
      • Imagine
      • XMM learning centre
      • SWIFT learning centre
      • RXTE learning centre
      • Fermi education centre
      • A brief History of High Energy Astronomy (NASA)
      • ESA education (ESA)
    • Advanced
      • Astronomy exercises (ESA/ESO)
      • Hubble Public Lectures (NASA)
  • Links
    • AHEAD main site (INAF)
    • Public Outreach
      • The Athena X-ray Observatory
      • European Gravitational Observatory (EGO)
      • 3XMM
      • ESA
      • ESO/ePOD
      • ESO-Press Release
      • HEASARC
      • WebStars
      • Ask an astrophycist
      • Cosmic Distances
      • AstronomyNow
    • Missions
      • INTEGRAL
      • XMM-NEWTON
      • AstroSat
      • Swift
      • Chandra
      • AGILE
      • ATHENA
  • Press
    • The Hot and Energetic Universe: A planetarium movie
    • Scientists invited to take advantage of leading high energy research centres
    • INAF Press Release: X-ray bombardment
    • AHEAD’s planetarium movie wins the international fulldome film competition
      • INAF Press Release
      • NOA Press Release
      • LU Press Release
    • Scientists assemble to discuss the power of X-ray spectroscopy
    • Researchers’ Night 2017
      • INAF Rome Press Release
      • NOA Press Release
    • Press release for ATHENA
      • NOA press release
      • INAF Rome press release
    • Press release from the AHEAD Multi-messenger workshop in Alicante
  • Social media

Author: Dr. Ektoras Pouliasis

First-ever image of powerful jets procuded by a Super-massive Black Hole!

April 8, 2020April 8, 2020 Dr. Ektoras PouliasisArticle, Uncategorized

A year ago, the Event Horizon Telescope (EHT) Collaboration observed for the first time the supermassive black hole at the center of the nearby radio galaxy M87, finding the dark central shadow that was in agreement with General Relativity, further Read More …

Our own beautiful Milky Way!

April 7, 2020April 7, 2020 Dr. Ektoras PouliasisImage

The central region of our galaxy, the Milky Way, contains an exotic collection of objects, including a supermassive black hole weighing about 4 million times the mass of the Sun (called Sagittarius A*), clouds of gas at temperatures of millions Read More …

A cosmic story of Dr. Jekyll and Mr. Hyde: A double star system appears to change its behavior rapidly and unpredictably!

April 5, 2020April 5, 2020 Dr. Ektoras PouliasisArticle

Astronomers have detected a double (or a binary as it is called) star system that it is flip-flopping between two alter egos using NASA’s Chandra X-ray Observatory and the National Science Foundation’s Karl F. Jansky Very Large Array (VLA). This Read More …

Case: A cosmic homicide!

April 2, 2020April 2, 2020 Dr. Ektoras PouliasisArticle

An artistic view of a star tearing apart by a black hole. Image credit: NASA. Astronomers solved the mystery and found the perpetrator, an intermediate-mass black hole that was caught in action tearing apart a star that just happened to Read More …

Testing “Theory of Everything” through Chandra X-ray Observatory!

March 20, 2020April 2, 2020 Dr. Ektoras PouliasisArticle

Source: NASA / CXC / University of Cambridge / C. Reynolds et al. The “Theory of everything” is a big idea that all forces, particles and interactions in Universe connect with each other under the same framework of physics with Read More …

Scratching the edge of the Universe: the most distant Blazar yet!

March 19, 2020 Dr. Ektoras PouliasisArticle

Scientists have detected an ancient super-massive black hole with the name PSO J030947.49+271757.31. Its distance was calculated 13 billion light-years from Earth making it officially the most distant blazar ever observed with a relativistic jet pointing directly toward Earth. The Read More …

BOOM! The biggest known explosion ever in the Universe’s history!

March 17, 2020March 17, 2020 Dr. Ektoras PouliasisArticle

Scientists, while studying a very distant cluster of galaxies, have discovered the biggest explosion ever seen in the Universe since the Big Bang! The energy released from this explosion is five times larger than the previous record holder, which occurred Read More …

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Are you ready to explore the X-ray Universe?

Welcome to CLAXSON!

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Now available in EN, FR, ES and GR!

CLAXSON is a platform that trains you to identify new objects observed in the X-ray sky with the European Space Agency X-ray telescope XMM-Newton. Be the first to find new supermassive black holes, stars, galaxies and other exotic objects in observations taken over the last 20 years, and help astronomers unravel the mysteries of the X-ray sky.

Invitation to submit news

Astronomers are invited to advertise their work and/or recent results in our website. Publications/news related to High Energy Astrophysics are of particular interest.

A brief text along with a related image should be sent to the following email addresses:
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igeorgantopoulos@gmail.com

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