Similarly, observations of the nearby SN PTF 11kx, discovered January 16, 2011 (UT) by the Palomar Transient Factory (PTF), lead to the conclusion that this explosion arises from single-degenerate progenitor, with a red giant companion, thus suggesting there is no single progenitor path to SN Ia.
"Our results show that at least some white-dwarf supernova explosions arise from a white dwarf that accretes material from a luminous companion star," Jha told Space .com
Entitled "Humanae Vitae," it starts out rather hopefully with a series of statements about new problems, such as the population explosion, that have arisen in our day as a result of the sexual relations between husband and wife.
This helps in avoiding the quadratic explosion in complexity arising from potentially interacting resources and avoids the linear cost necessary to program each resource independently.
In the 1970s there was an ongoing debate about whether multi-celled animals appeared suddenly during the Early Cambrian, in an event called the Cambrian explosion, or had arisen earlier but without leaving fossils.
Releasing its final report, the commission found that the Deepwater Horizon explosion and subsequent oil spill arose from a preventable series of corporate and regulatory failures.
Keen is most famous for deriding the 'cult of the amateur', as he calls it, or rather the explosion of social media which arose with the new platforms to emerge alongside what became known as Web 2.0.
Speculation that the incident was terrorism arose shortly after the explosion, which spilled oil along 45 miles of coastline.
