cosmic х- (gamma-) ray burst
51Neutron star — redirects here. For the story by Larry Niven, see Neutron Star (short story). Neutron stars crush half a million times more mass than Earth into a sphere no larger than Manhattan. A neutron star is a type of stellar remnant that can result from… …
52Mars 96 — Model of the Mars 96 Orbiter Operator Russian Space Forces Mis …
53SWIFT (télescope spatial) — Pour les articles homonymes, voir Swift. Swift …
54GRB 990123 — Infobox Galaxy caption = Optical afterglow of gamma ray burst GRB 990123 (the bright dot within the white square and in the enlarged cutout) on January 23 1999. The object above it with the finger like filaments is its originating galaxy. This… …
55Space science — is an all encompassing term that describes all of the various science fields that are concerned with the study of the Universe, generally also meaning excluding the Earth and outside of the Earth s atmosphere . Originally, all of these fields… …
56Extinction event — …
57Compact star — In astronomy, the term compact star (sometimes compact object) is used to refer collectively to white dwarfs, neutron stars, other exotic dense stars, and black holes. These objects are all small for their mass. The term compact star is often… …
58Risks to civilization, humans and planet Earth — This article is about the near and very far future. For past civilizations, see Societal collapse. Contents 1 Types of risks 2 Future scenarios 2.1 …
59Type II supernova — The expanding remnant of SN 1987A, a Type II P supernova in the Large Magellanic Cloud. NASA image. A Type II supernova (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. A star must have at least 9… …
60GRB 090423 — Галактика История исследования Открыватель Swift (космический аппарат) Дата открытия 07:55 UTC 23 апреля 2009 года Наблюдательные данные ( …
