Search results
Results from the WOW.Com Content Network
Diagram of stellar evolution, showing the various stages of stars with different masses. A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently to no longer emit significant heat or light.
A star in this hypothetical state is called a "quark star" or more specifically a "strange star". The pulsar 3C58 has been suggested as a possible quark star. Most neutron stars are thought to hold a core of quark matter but this has proven difficult to determine observationally. [citation needed]
The universe is home to real-life Death Stars that could destroy Earth. The latest science reveals the terrifying secrets of NASA's six deadliest: Cataclysmic variable stars, supernovas that can vaporize a planet, and unpredictable intergalactic stars.
The white dwarf, called WD 0816-310, is an Earth-size remnant of a star that was once like our sun but larger. The stellar object acquired a noticeable dark mark on its surface, which turned out ...
The recent burst, called FRB 20240209A, throws that theory into question. The flare was first detected in February 2024 with a newer radio telescope called the Canadian Hydrogen Intensity Mapping ...
Nemesis is a hypothetical red dwarf [1] or brown dwarf, [2] originally postulated in 1984 [3] to be orbiting the Sun at a distance of about 95,000 AU (1.5 light-years), [2] somewhat beyond the Oort cloud, to explain a perceived cycle of mass extinctions in the geological record, which seem to occur more often at intervals of 26 million years.
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 February 2025. Discrepancy of the lack of evidence for alien life despite its apparent likelihood This article is about the absence of clear evidence of extraterrestrial life. For a type of estimation problem, see Fermi problem. Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy ...
The official (tongue-in-cheek) response was released in January 2013: [85] the cost of building a real Death Star has been estimated in 2012 by a Centives economics blog of Lehigh University to $850 quadrillion, or about 13,000 times the worldwide gross domestic product, as well as at current rates of steel production, the Death Star would not ...