A membrane between what is inside the solar system and the outside. đ
NASAâs New Horizons spacecraft has helped scientists study a mysterious phenomenon at the edge of the Solar System, where particles from the Sun and interstellar space interact.
This region, about 100 times further from the Sun than Earth, is where uncharged hydrogen atoms from interstellar space meet charged particles from our Sun. The latter extend out from our Sun in a bubble called the heliosphere.
At the point where the two interact, known as the heliopause, itâs thought there is a build-up of hydrogen from interstellar space. This creates a sort of âwallâ, which scatters incoming ultraviolet light.
Thereâs no argument in the astronomical communityârocket-propelled spacecraft can take us only so far. The SLS will likely take us to Mars, and future rockets might be able to help us reach even more distant points in the solar system. But Voyager 1 only just left the solar system, and it was launched in 1977. The problem is clear: we cannot reach other stars with rocket fuel. We need something new.
âWe will never reach even the nearest stars with our current propulsion technology in even 10 millennium,â writes Physics Professor Philip Lubin of the University of California Santa Barbara in a research paper titled A Roadmap to Interstellar Flight. âWe have to radically rethink our strategy or give up our dreams of reaching the stars, or wait for technology that does not exist.â
Lubin received funding from NASA last year to study the possibility of using photonic laser thrust, a technology that does exist, as a new system to propel spacecraft to relativistic speeds, allowing them to travel farther than ever before. The project is called DEEP IN, or Directed Propulsion for Interstellar Exploration, and the technology could send a 100-kg (220-pound) probe to Mars in just three days, if research models are correct. A much heavier, crewed spacecraft could reach the red planet in a monthâabout a fifth of the time predicted for the SLS.
An international team of astronomers has investigated a nearby emission nebula and star-forming region dubbed the Catâs Paw Nebula as part of the B-ïŹeld In STar-forming Region Observations (BISTRO) survey. Results of this study, presented in a paper published December 24 on arXiv.org, provide essential information about the structure of the objectâs complex magnetic field.
At a distance of some 4240 light years away, the Catâs Paw Nebula (other designations: NGC 6334, Gum 64) is a high-mass star-forming complex that lies within the galactic plane. The nebula has a form of a filamentary cloud structure spanning 1000 light years and hosts several star-forming regions.
Observations show that NGC 6334 is dominated by both a dense ridge threaded by sub-ïŹlaments, and by two hub-like structures towards its Northeast end. Astronomers have found that this ridge itself is in the process of active high-mass star formation and ultra-compact HII regions, maser sources, and molecular outïŹows have been identiïŹed along or next to its crest. However, although column density and velocity structures of the nebulaâs both ïŹlaments and hubs have been thoroughly studied, still very little is known about its magnetic field (B-field).
The Orion is a sub-orbital electric aircraft equipped with an air-breathing magneto-plasma jet propulsion engine that could go from the tarmac to an altitude of 24000 metres and cruise at about 800 km/h.
It would bring passengers to the edge of black space with stunning views from its ultra-wide panoramic windows. Its new plasma pulse detonation engine could become the standard of this nascent industry.
Itâs obvious that sub-orbital jets will become in demand as Earthâs population and wealth continues to rise. Thereâs already a lot of demand for jets capable of reaching this kind of altitude, but one major barrier has been the engineâs performance and overall costs. The Orion concept is all about introducing a new type of propulsion (plasma jet) and seeing how it could benefit various industries.
Interstellar probes and future interstellar travel will require relativistic rockets. The problem is that such a rocket drive requires that the rocket exhaust velocity from the fuel also is relativistic, since otherwise the rocket thrust is much too small: the total mass of the fuel will be so large that relativistic speeds cannot be reached in a reasonable time and the total mass of the rocket will be extremely large. Until now, no technology was known that would be able to give rocket exhaust at relativistic speed and a high enough momentum for relativistic travel. Here, a useful method for relativistic interstellar propulsion is described for the first time. This method gives exhaust at relativistic speeds and is a factor of at least one hundred better than normal fusion due to its increased energy output from the annihilation-like meson formation processes. It uses ordinary hydrogen as fuel so a return travel is possible after refuelling almost anywhere in space. The central nuclear processes have been studied in around 20 publications, which is considered to be sufficient evidence for the general properties. The nuclear processes give relativistic particles (kaons, pions and muons) by laser-induced annihilation-like processes in ultra-dense hydrogen H. The kinetic energy of the mesons is 1300 times larger than the energy of the laser pulse. This method is superior to the laser-sail method by several orders of magnitude and is suitable for large spaceships.
The tiny house weâre going to discuss today wonât buy you freedom like trailer-based models, but it compensates for that with its own AI assistant. Itâs smart, itâs tiny, it can be solar powered if you want, and itâs still very chic. Itâs dubbed the next-generation tiny house: the Cube Two from Nestron.
You donât have to actually live large in order to live large. Tiny houses are a good option when it comes to minimizing your footprint, downsizing costs and not sacrificing anything but space you probably wouldnât be using either way.
Cygnus is scheduled to depart the International Space Station on Wednesday, Jan. 6, more than 3 months after delivering nearly 8000 pounds of supplies to austronauts all the way in outer space. Cygnus arrived at the space station Oct. 52020.
Scientists at Freie UniversitÀt Berlin develop a deep learning method to solve a fundamental problem in quantum chemistry.
A team of scientists at Freie UniversitÀt Berlin has developed an artificial intelligence (AI) method for calculating the ground state of the Schrödinger equation in quantum chemistry. The goal of quantum chemistry is to predict chemical and physical properties of molecules based solely on the arrangement of their atoms in space, avoiding the need for resource-intensive and time-consuming laboratory experiments. In principle, this can be achieved by solving the Schrödinger equation, but in practice this is extremely difficult.
Currently, we are faced with a shortage of precious metals from conventional mines. As such, humanity has turned to deep-sea mining in order to gather its precious metals resources. In this video, I will talk about the differences between deep-sea mining and asteroid mining as well as talk about these technologiesâ implications for the future world.
