The newly discovered pair, nicknamed Porphyrion after a rebellious giant in Greek mythology, were spotted in observations from LOFAR, a network of radio wave detectors in the Netherlands.

Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in length.

An artist's illustration of the longest black hole jet system ever observed. Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light-years.

Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light- years. That is equivalent to lining up 140 Milky Way galaxies back-to-back.

It's been named Porphyrion, after the king of giants in Greek mythology, and it spans, in total, some 7 megaparsecs across space-time.That's a whopping 23 million light-years from end to end ...

Greek cement maker Titan <TTNr.AT> said on Tuesday net profit fell 13 percent to 208 million euros ($266.5 million) last year on a sharply lower demand for building materials in the United States ...

Astronomers have named the jets Porphyrion, after a giant from Greek mythology. They were spotted far enough away that the universe was only 6.3 billion years old – less than half its present age.

Astronomers have seen the largest jets ever found erupting from a black hole. The giant jet system Porphyrion is 23 million light-years long, equal to 140 side-by-side Milky Way galaxies.

Titan 9-month net loss at 15 million euros Greek cement market slump continues unabated Sales in the United States mitigate earnings woes ATHENS, Nov 12 (Reuters) - Greece's biggest cement maker ...

Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in length.