[1111.6131] The Fermi Paradox, Self-Replicating Probes, and the Interstellar Transportation Bandwidth
Title: The Fermi Paradox, Self-Replicating Probes, and the Interstellar Transportation Bandwidth Authors: Keith B. Wiley Abstract: It has been widely acknowledged that self-replicating space-probes (SRPs) could explore the galaxy very quickly relative to the age of the galaxy.
Since such a ship might take centuries to thousands of years to reach even nearby stars, the original occupants of a generation ship would grow old and die, leaving their descendants to continue traveling.
Humankind's most distant emissaries are flying through a turbulent sea of magnetism as they seek to break free of our Solar System.
The most distant spacecraft from Earth, Voyager 1, is executing a series of roll manoeuvres, proving the 33-year-old explorer is in great shape. The extraordinary Voyager 1 spacecraft is demonstrating its nimbleness more than 30 years after leaving Earth.
When I sat down with the mission's project scientist in California in August 2012, his response was much the same as always: "My best estimate is that it will be in the next couple of years, but it may be in the next couple of days. It's unknown." Not anymore.
Renowned researchers, educators and makers, pioneering bridge building methods, development and inspiration for Interstellar Flight.
Chemical factories around young stars may give rise to far more complex molecules than previously thought. Relatively complex, carbon-containing molecules are found in comets and on nearby planets, thought to have been made elsewhere in our Solar System.
Project Longshot was a conceptual interstellar spacecraft design. It would have been an unmanned probe, intended to fly to and enter orbit around Alpha Centauri B powered by nuclear pulse propulsion.
Project Daedalus was a study conducted between 1973 and 1978 by the British Interplanetary Society to design a plausible unmanned interstellar spacecraft.
Scientists may have identified the first specks of interstellar dust in material collected by the US space agency's Stardust spacecraft. The Nasa spacecraft was primarily sent to catch dust streaming from Comet Wild 2 and return it to Earth for analysis.
Scientists working on Voyager 1 are receiving further data suggesting the probe is close to crossing into interstellar space. The Nasa mission, which launched from Earth in 1977, could leave our Solar System at any time.
Japanese scientists are celebrating the successful deployment of their solar sail, Ikaros. The 200-sq-m (2,100-sq-ft) membrane is attached to a small disc-shaped spacecraft that was put in orbit last month by an H-IIA rocket.
Stephen Hawking is backing a project to send tiny spacecraft to another star system within a generation. They would travel trillions of miles; far further than any previous craft.
Spacecraft could one day navigate through the cosmos using a particular type of dead star as a kind of GPS. German scientists are developing a technique that allows for very precise positioning anywhere in space by picking up X-ray signals frompulsars.
Scientists have found the beginnings of life-bearing chemistry at the centre of the galaxy. Iso-propyl cyanide has been detected in a star-forming cloud 27,000 light-years from Earth.
The buzz about `Oumuamua, our first known visitor from another stellar system, seems likely to continue given yesterday’s news that the object’s axis ratio is a startling 10 to 1. Given all that, Jim Benford wondered whether there were SETI implications here.
Voyager 1, the most distant spacecraft from Earth, has reached a new milestone in its quest to leave the Solar System. Now 17.4bn km (10.8bn miles) from home, the veteran probe has detected a distinct change in the flow of particles that surround it.
Two sequential visions of future human civilization: an interplanetary civilization within our solar system, having expanded beyond Earth, and an interstellar civilization comprising multiple planetary systems, having expanded beyond our local planetary system.
The Pentagon's premiere research agency has chosen a former astronaut to lead a foundation that is designed to take humanity to the stars. The Defense Advanced Research Projects Agency (Darpa) and Nasa are sponsoring the project, known as the 100-Year Starship.
It’s a dynamic star map that shows the closest star to you directly overhead when you look up. And since the Earth is constantly moving, our logo features different stars based on where you are and what time it is.
The human race must move to a planet beyond our Solar System to protect the future of the species, physicist Professor Stephen Hawking has warned. He told the BBC that life could be wiped out by a nuclear disaster or an asteroid hitting the planet.
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Breakthrough Initiatives is a program founded in 2015 and funded by Yuri Milner to search for extraterrestrial intelligence over a span of at least 10 years. The program is divided into multiple projects.
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