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Visualizzazione post con etichetta exobiology. Mostra tutti i post
Visualizzazione post con etichetta exobiology. Mostra tutti i post

martedì 20 luglio 2021

# life: some scientists hypothesize the possibility of (A) traveling faster than light, (B) visiting the interior of a black hole, (C) being already under observation by alien entities.

(A) traveling faster than light

<< Lentz (Erik Lentz. https://iopscience.iop.org/article/10.1088/1361-6382/abe692 ) proposes one such way we might be able to do this, thanks to what he calls a new class of hyper-fast solitons – a kind of wave that maintains its shape and energy while moving at a constant velocity (and in this case, a velocity faster than light). According to Lentz's theoretical calculations, these hyper-fast soliton solutions can exist within general relativity, and are sourced purely from positive energy densities, meaning there's no need to consider exotic negative- energy- density sources that haven't yet been verified. (..) With sufficient energy, configurations of these solitons could function as 'warp bubbles', capable of superluminal motion, and theoretically enabling an object to pass through space-time while shielded from extreme tidal forces. >>

<< another recent analysis, published only this month ( David Nield.  https://www.sciencealert.com/engineers-have-proposed-the-first-model-for-a-physical-warp-drive  ;  Alexey Bobrick, Gianni Martire. https://iopscience.iop.org/article/10.1088/1361-6382/abdf6e ), which also proposes an alternative model for a physically possible warp drive that doesn't require negative energy to function. >>️️

Peter Dockrill. Faster-Than-Light Travel Is Possible Within Einstein's Physics, Astrophysicist Shows. Mar 11, 2021.


(B) visiting the interior of a black hole

<<  if a person found an isolated supermassive black hole suitable for scientific study and decided to venture in, everything observed or measured of the black hole interior would be confined within the black hole's event horizon.
Keeping in mind that nothing can escape the gravitational pull beyond the event horizon, the in-falling person would not be able to send any information about their findings back out beyond this horizon. Their journey and findings would be lost to the rest of the entire universe for all time. But they would enjoy the adventure, for as long as they survived … maybe …. >>️

Leo Rodriguez, Shanshan Rodriguez. Could a human enter a black hole to study it? A person could travel past (certain) black holes' event horizons without dying immediately — here's how. Feb 7, 2021. 


(C) being already under observation by alien entities.

<< On June 25 the Pentagon and the Office of the Director of National Intelligence released their much hyped report on unidentified aerial phenomena, or UAP. (..) And while the report did not rule out an extraterrestrial origin for much of the documented UAP, it was short on details or bombshells. >> 

<<  we already know our world is easily detectable by extrasolar observers. A paper published on June 23 in Nature  
(Kaltenegger L., Faherty J.K.  https://www.nature.com/articles/s41586-021-03596-y ) shows that in the past 5,000 years, 1,715 stars have been in the right celestial position to view a populated Earth transiting the sun—with 319 more entering this sweet spot in the next 5,000 years. And seven of these far-off stars are known to have their own orbiting exoplanets that might support life. >>

<< Think of living in a room, and all the windows are open, and you do all your business, and you don’t know that all the windows are open, (..) Would you behave differently if you knew that you are being seen all your life? >>️  René Heller️
Tess Joosse. Aliens Might Already Be Watching Us. A new star map reveals more than 2,000 stars, some with their own planets, that have a direct view of our planetary presence. July 1, 2021




venerdì 26 marzo 2021

# evol: ancient photosynthesis could be as old as life itself

<< the earliest bacteria had the tools to perform a crucial step in photosynthesis,  (..) The finding also challenges expectations for how life might have evolved on other planets. >>️

<< Photosystem II show patterns of evolution that are usually only attributed to the oldest known enzymes, which were crucial for life itself to evolve >> Tanai Cardona.️

<< enzymes capable of performing the key process in oxygenic photosynthesis -- splitting water into hydrogen and oxygen -- could actually have been present in some of the earliest bacteria. The earliest evidence for life on Earth is over 3.4 billion years old and some studies have suggested that the earliest life could well be older than 4.0 billion years old.  Like the evolution of the eye, the first version of oxygenic photosynthesis may have been very simple and inefficient; as the earliest eyes sensed only light, the earliest photosynthesis may have been very inefficient and slow. (..) that oxygen production was present at all so early on means in other environments, such as on other planets, the transition to complex life could have taken much less time. >>️

Photosynthesis could be as old as life itself. Imperial College London. Mar 24, 2021. 


Thomas Olivera, Patricia Sanchez-Baracaldo, et al. Time-resolved comparative molecular evolution of oxygenic photosynthesis.Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2021; 1862 (6): 148400. doi: 10.1016/ j.bbabio.2021.148400. Jun 1,  2021.


Also

Lewis M. Ward, Patrick M. Shih. Granick revisited: Synthesizing evolutionary and ecological evidence for the late origin of bacteriochlorophyll via ghost  lineages and horizontal gene transfer. PLoS ONE 16(1): e0239248. doi:10.1371/journal.pone.0239248. 
Jan 28, 2021. 



venerdì 24 luglio 2020

# life: high traffic, busy skies; every 6 months the Agency will publish news about TicTac Entities, UFOs, UAPs, ...

<< The Pentagon’s secretive UFO unit is going to make some of its findings public, The New York Times reported. And one consultant to the agency (Eric W. Davis, Astrophysicist) has briefed Defense Department officials of some highly unusual discoveries ― including items retrieved from “off-world vehicles not made on this Earth,” the newspaper said. >>

<< The military’s encounters with possible UFOs have come under intense interest since several videos were leaked in 2017 showing encounters with fast-moving objects including one given the nickname “Tic Tac” because it looked like one of the candies. This object, still not publicly identified, dropped from 60,000 feet to just 50 feet in a matter of seconds: “The part that drew our attention was how it wasn’t behaving within the normal laws of physics,” >> Chad Underwood, pilot. 

Ed Mazza. Explosive UFO Report In NYT Mentions ‘Off-World Vehicles Not Made On This Earth’. A Pentagon consultant made the revelation to The New York Times. Jul 24, 2020


<< It's not every day one reads a New York Times article containing the phrase “off-world vehicles not made on this earth". When I investigated UFOs for the UK government in the Nineties, I could only dream of such mainstream respectability for this subject. >> Nick Pope. 07:33 Jul 24, 2020. 


Also

keyword 'ufo' in FonT:


keyword 'ufo' in Notes (quasi-stochastic poetry):




giovedì 9 luglio 2020

# life: the transient floating entities suspended in the skies of Venus

<< From afar, Venus seems like the most uninhabitable planet of all. >>

<< NASA’s Magellan mission conducted radar mapping of the entire surface of Venus, penetrating its cloud layer and enabling (..) to reconstruct the first 3D map of the Venusian surface. >>

<< Beneath its carbon dioxide/nitrogen atmosphere, 90 times thicker than Earth’s, a hellscape of a surface awaits. >>

<< Although (..) successfully sent numerous landers, they’ve all failed after mere hours. The reason? A layer of sulfuric acid clouds enshrouds Venus at high altitudes. These radiation-reflecting clouds create a runaway greenhouse effect: responsible for Venus’s incredible temperatures. >>

<< At 60 kilometers (36 miles) in altitude, temperatures and atmospheric pressures are similar to Earth’s. The right ingredients for life, including carbon, oxygen, and nitrogen-rich molecules, are all abundant. Ultraviolet photos of Venus display "dark patches," which Harold Morowitz and Carl Sagan suggested could indicate microorganisms. >>

<< Above the cloud-tops, Venus has been called a "paradise planet." >>

Ethan Siegel. Yes, There Really Could Be Life In The Cloud Tops Of Venus. Jul 6, 2020.