g Stars - A cosmic explosion seen 31 years ago may have been the birth cry of the youngest black hole ever observed, which could help researchers understand how black holes are born and evolve. See article.
g Intelligence - Australia's first people viewed comets as portents of doom, a new study of Aboriginal astronomy has found. See article.
g Message - Advanced extraterrestrial civilizations which make extensive use of the fusion fuel resources of their local star and planetary system have numerous potentially observable characteristics. A circumstellar nuclear fuel molecular effusion cloud, the principal observable, rapidly dissociates and neutralizes to the atomic ground state, permitting the detection of hydrogen and tritium hyperfine transition radio lines at 1420 MHz and 1516 MHz, respectively. The negligible natural abundance of neutral atomic ground-state tritium suggests that its hyperfine line, the "tritium waterspout" centered in the radio SETI "waterhole" band, is ideal for interstellar communication and future SETI searches. Other possible observables of advanced civilizations include redshifted neutrino point sources, an artificial radio spectrum, anomalous blackbody radiation, fission waste absorption lines, Doppler and stellar spectral anomalies, and extraordinary magnetic fields. See article. This article is from 1985.
Read this blogger’s books
No comments:
Post a Comment