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Betty Louise Turtle (née Webster [also Webster in published works]) (20 May 1941 - 29 September 1990) was an Australian astronomer and physicist.In 1971, with her colleague Paul Murdin, she identified the powerful X-ray source Cygnus X-1 as the first clear candidate for a black hole.
Yondu Udonta, or simply Yondu (/ ˈ j ɒ n d uː /), is a character appearing in American comic books published by Marvel Comics.The original version of the character is depicted as the last survivor of his species, a spiritual warrior who can control his arrows through sound waves, and a founding member of the original Guardians of the Galaxy from the 31st century of the alternate reality of ...
The redshift of J0529-4351 is 3.962. The object itself is classified as a radio-quiet quasar.Fitting accretion models to the spectra yields an accretion rate of matter onto the black hole of 280 to 490 solar masses per year for an accretion disk around the black hole observed at an angle of zero to 60 degrees, with accretion occurring near the Eddington limit.
Arthur Reginald Evans, DSC (14 May 1905 – 31 January 1989) was an Australian coastwatcher in the Pacific Ocean theatre in World War II.He is chiefly remembered for having played a significant part in the rescue of future US President John F. Kennedy and his surviving crew after their motor torpedo boat, PT-109, was sunk by the Japanese in August 1943.
QSO J0313−1806 [2] was the most distant, and hence also the oldest known quasar at z = 7.64, at the time of its discovery. [1] In January 2021, it was identified as the most redshifted (highest z) known quasar, with the oldest known supermassive black hole (SMBH) at (1.6 ± 0.4) × 10 9 solar masses.
Scientists have discovered the oldest black hole yet, a cosmic beast formed a mere 470 million years after the Big Bang. The findings, published Monday, confirm what until now were theories that ...
"The triple system could not have survived if the black hole was born with a natal kick, so this discovery tells us that at least some black holes form without a kick - implying a quiet implosion ...
January–February – Discovery of nuclear fission is announced independently by Otto Hahn and Lise Meitner. [ 12 ] [ 13 ] [ 14 ] On January 26, Niels Bohr reports the splitting of the uranium nucleus with a release of two hundred million electron volts of energy to a conference on the campus of George Washington University in Washington, D.C ...