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The time until Betelgeuse explodes depends on the predicted initial conditions and on the estimate of the time already spent as a red supergiant. The total lifetime from the start of the red supergiant phase to core collapse varies from about 300,000 years for a rotating 25 M ☉ star, 550,000 years for a rotating 20 M ☉ star, and up to a ...
About twelve hours after the explosion, Betelgeuse sank at her moorings in 40 m (130 ft) of water, which largely extinguished the main body of the fire. [9] In spite of this, rescue workers were not able to approach the wreck (the bow of which was still above water) for a fortnight due to clouds of toxic and flammable gas surrounding it. When ...
Humanity has marveled at the vivid star Betelgeuse for many millennia. Over two thousand years ago, this imperious red object in the constellation Orion caught the eye of the Roman poet Horace:But ...
If the expansion occurs too close to the surface the restoring force will be too weak to create a pulsation. The restoring force to create the contraction phase of a pulsation can be pressure if the pulsation occurs in a non-degenerate layer deep inside a star, and this is called an acoustic or pressure mode of pulsation, abbreviated to p-mode.
Normally I look at the weather 10 days or a week before, just to have an idea of what it could be,” he says. “Then I check the forecast once per day, then two or three days before departure I ...
The warmer waters in the Pacific Ocean associated with El Niño can reshape weather patterns across the globe for months at a time. AccuWeather's team of long-range meteorologists says the effects ...
[22]: 67 The extent of ocean warming depends on greenhouse gas emission scenarios, and thus humans' climate change mitigation efforts. Scientists predict that marine heatwaves will become "four times more frequent in 2081–2100 compared to 1995–2014" under the lower greenhouse gas emissions scenario , or eight times more frequent under the ...
Kamaʻehuakanaloa (formerly Lōʻihi), the youngest volcano in the Hawaiian–Emperor seamount chain, will rise above the surface of the ocean and become a new volcanic island. [38] c. 300,000 [note 1] At some point in the next few hundred thousand years, the Wolf–Rayet star WR 104 may explode in a supernova.