Today we look at the subject of Interstellar Colonization, from the ship concepts and propulsion methods all the way to intergalactic colonization.
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Archive for the ‘space travel’ category: Page 140
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Black Holes are often considered the greatest dangers to spaceships in science fiction, but they may turn out to be the perfect power source for future spaceships.
Check out PBS Spacetime’s episode on Hawking Radiation: https://www.youtube.com/watch?v=qPKj0YnKANw.
Toth’s Black Hole Calculator: https://www.vttoth.com/CMS/physics-notes/311-hawking-radiation-calculator.
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In order to get into space, we require either huge amounts of rocket fuel or dangerously powerful energy sources, making personal spacecraft a technology limited to science fiction. But by harnessing beamed power sources to run engines, we may be able to create a spaceplane cheap enough and safe enough that anyone could have one in the future.
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To travel to the stars by Folding Space is a method of space travel seen in many science fiction classics like Dune, but could it be possible under known science?
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Jul 8, 2022
SpaceX outfits Starship, Super Heavy with dozens of Raptor engines
Posted by Genevieve Klien in category: space travel
New photos shared by SpaceX show that the company has nearly finished installing a total of 39 upgraded Raptor engines on a new Starship and its Super Heavy booster.
Those prototypes – known as Ship 24 and Booster 7 – could be tasked with supporting Starship’s first orbital launch attempt sometime later this year if both make it through upcoming test campaigns without major issues. Whether that’s a probable outcome is still uncertain but recent progress suggests that it won’t take long for the prospects of both prototypes to shift into clearer focus.
After several rounds of proof testing and two trips to and from SpaceX’s Starbase, Texas orbital launch site (OLS) in March, April, and May, Super Heavy Booster 7 (B7) made its third trip to the pad on June 23rd.
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So many of hopes and dreams for colonizing space rely on faster than light travel, and yet the ability to move between stars in moment seems against the laws of reality… but perhaps we can break those rules.
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In Episode 3 we look at the concept of warp drives, a theoretical type of spaceship propulsion that warps spacetime to allow faster than light travel. We discuss the basic concept and the scientific and technological hurdles to developing it, along with clearing up many of the myths about it.
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Jul 8, 2022
Next-day deliveries to space? Rocket Lab announces ambitious new launch program
Posted by Gemechu Taye in category: space travel
Jul 8, 2022
Frozen Apollo 17 samples finally analysed after 50 years
Posted by Shubham Ghosh Roy in category: space travel
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Scientists are finally getting a look at frozen lunar surface samples from the last time that humans walked on the Moon.
The samples were collected during the Apollo 17 mission, which returned to Earth in December 1972.
Continue reading “Frozen Apollo 17 samples finally analysed after 50 years” »
Jul 6, 2022
Mathematical calculations show that quantum communication across interstellar space should be possible
Posted by Jose Ruben Rodriguez Fuentes in categories: mathematics, particle physics, quantum physics, space travel
A team of physicists at the University of Edinburgh’s School of Physics and Astronomy has used mathematical calculations to show that quantum communications across interstellar space should be possible. In their paper published in the journal Physical Review D, the group describes their calculations and also the possibility of extraterrestrial beings attempting to communicate with us using such signaling.
Over the past several years, scientists have been investigating the possibility of using quantum communications as a highly secure form of message transmission. Prior research has shown that it would be nearly impossible to intercept such messages without detection. In this new effort, the researchers wondered if similar types of communications might be possible across interstellar space. To find out, they used math that describes that movement of X-rays across a medium, such as those that travel between the stars. More specifically, they looked to see if their calculations could show the degree of decoherence that might occur during such a journey.
With quantum communications, engineers are faced with quantum particles that lose some or all of their unique characteristics as they interact with obstructions in their path—they have been found to be quite delicate, in fact. Such events are known as decoherence, and engineers working to build quantum networks have been devising ways to overcome the problem. Prior research has shown that the space between the stars is pretty clean. But is it clean enough for quantum communications? The math shows that it is. Space is so clean, in fact, that X-ray photons could travel hundreds of thousands of light years without becoming subject to decoherence—and that includes gravitational interference from astrophysical bodies. They noted in their work that optical and microwave bands would work equally well.
