Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Habitability Of Galactic Bulge - Good News For Foundation Fans
In his 1950's classics, the Foundation series, science fiction writer Isaac Asimov describes the difficulties of traveling from the Periphery of the galaxy to its heavily populated center. The number of stars increases dramatically; hence the difficulty:
Toran became of that when a Jump landed their ship in the full glare of a red giant which clutched viciously, and whose grip was loosed, then wrenched apart, only after twelve sleepless, soul-battering hours.
With charts limited in scope, and an experience not at all fully developed, either operationally or mathematically, Toran resigned himself to days of careful plotting between Jumps.
A recent paper by European astronomers indicates that it may be possible that the parts of the Galaxy that are heavily populated by stars may be heavily populated by living beings as well.
The stars begin to cluster closely when the core of the Galaxy is penetrated. Gravitational fields begin to overlap at intensities sufficient to induce perturbations in an interstellar Jump that can not be overlooked.
Interesting. Up until now the opinion was that the galactic bulge was too full of supernova and other dangerous stuff to be considered "habitable" on a long term basis. https://t.co/TaF2VGsPm4
— Winchell Chung⚛🚀 (@nyrath) August 5, 2020
We present a new investigation of the habitability of the Milky Way bulge, that expands previous studies on the Galactic Habitable Zone. We discuss existing knowledge on the abundance of planets in the bulge, metallicity and the possible frequency of rocky planets, orbital stability and encounters, and the possibility of planets around the central supermassive black hole.We focus on two aspects that can present substantial differences with respect to the environment in the disk: (i) the ionizing radiation environment, due to the presence of the central black hole and to the highest rate of supernovae explosions and (ii) the efficiency of putative lithopanspermia mechanism for the diffusion of life between stellar systems.
We use analytical models of the star density in the bulge to provide estimates of the rate of catastrophic events and of the diffusion timescales for life over interstellar distances...
We have also shown that lithopanspermia scenarios would be more efficient in the bulge with respect to the solar neighborhood. If indeed the spreading of life between stellar systems is possible, then the highest rate of catastrophic events might be balanced by the possibility that life can migrate quickly to safer locations. Any attempt to model the possible distribution of inhabited planets in the inner region of the galaxy should therefore take this aspect into account. This would provide an additional motivation for a more thorough investigation of the bulge habitability.
Scroll down for more stories in the same category. (Story submitted 7/29/2020)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories - (" Space Tech ")
'If Anyone Is Watching Earth...'
'Our study of your race has convinced us that you are not fitted to leave your planet in the present state of your civilization.' - Arthur C. Clarke, 1946.
Cloud Of Space Rubbish From China's Long March Rocket
'Within seconds the material was spread out over fifty yards, in a matter of hours it might occupy several cubic miles of space...'
ESA's Draco To Study Heat Of Reentry
'...a synthetic which air-friction would erode.' - EE Doc Smith, 1934.
The United States Space Academy Is Official
'Is our orbit to Space Academy clear?' - Carey Rockwell
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
'If Anyone Is Watching Earth...'
'Our study of your race has convinced us that you are not fitted to leave your planet in the present state of your civilization.'
Epirus High-Power Microwave Defeats Drones
'...the spreading beam of the deranging ray struck them, and Then one toppled and fell. Then another.'
Cloud Of Space Rubbish From China's Long March Rocket
'Within seconds the material was spread out over fifty yards, in a matter of hours it might occupy several cubic miles of space...'
Biomimetic Tendons From Rochu Robotics
'... the curious parallelism to animal motions.'
Living Human Neuron Biological Compute Rack
'The men are dead, but their acquired wisdom lives on and I am the beneficiary.'
Martha Stewart Approves Ojai 'Living Room On Wheels'
'Young people found the driverless car admirable for petting.'
ESA's Draco To Study Heat Of Reentry
'...a synthetic which air-friction would erode.'
Buy A Galaxy? Maybe Start Smaller
'The sky is the limit' just got higher.
The United States Space Academy Is Official
'Is our orbit to Space Academy clear?'
Is There A Global Problem With Who Is Having Children?
'After twenty generations of shillyshallying...'
You Will Eat The Cookies Made From Plastic...
'Our planes are going to start bringing in bales of discarded plastics...'
It's A Giant Robot! You Reporters Have Been Warned!
'... completely forgetting the ship at sight of the awesome figure and great head of the giant Gaut...'
Birds Learn To Sing Pictures ala Frank Herbert's Distrans
'We will fight in the time of fighting.'
ElectionSim: China's 'Ender's Game' Battle Sim, Or Lem's 'Kingdom In A Box'?
'So, Ender, we will now begin your education.'
Tactile Skin Supplier Map
'What strange sensitivity! What an amazing development of science was manifested in every move and act and word of this Robot!'
Flock Stymied By 'Adversarial Fashion'
'Forget the head atop it, the legs below, feet, arms, hands. It compels erasure.'
