This new paper argues that continued economic growth on Earth will hit a thermodynamic limit within the third millenium, if economic activities and energy consumption cannot be decoupled. The maximum size would be up to 7000 times the current one. An in-space economy would offer a way out.

“Energy Limits to the Gross Domestic Product on Earth” https://arxiv.org/abs/2005.05244

(Image: Wikipedia — https://commons.wikimedia.org/wiki/File:Sky_mile_tower.jpg)

Stephen Baxter collaborates with i4is on AI for interstellar travel — Andreas Hein and Stephen Baxter explore the potential of artificial intelligence for interstellar exploration and colonization in a brand-new arXiv preprint (Image: Adrian Mann)

https://arxiv.org/abs/1811.06526

Interstellar travel one of the most moral projects? “one of the most moral projects might be to prepare for interstellar travel. After all, if the Earth becomes inhabitable—whether in 200 years or in 200,000 years—the only known civilization in the history of the solar system will suddenly go extinct. But if the human species has already spread to other planets, we will escape this permanent eradication, thus saving millions—possibly trillions—of lives that can come into existence after the demise of our first planet.”

The Red Planet is a freezing, faraway, uninhabitable desert. But protecting the human species from the end of life on Earth could save trillions of lives.

Abstract: Can machines design? Can they come up with creative solutions to problems and build tools and artifacts across a wide range of domains? Recent advances in the field of computational creativity and formal Artificial General Intelligence (AGI) provide frameworks for machines with the general ability to design. In this paper we propose to integrate a formal computational creativity framework into the G” odel machine framework. We call this machine a design G” odel machine. Such a machine could solve a variety of design problems by generating novel concepts. In addition, it could change the way these concepts are generated by modifying itself. The design G” odel machine is able to improve its initial design program, once it has proven that a modification would increase its return on the utility function. Finally, we sketch out a specific version of the design G” odel machine which specifically aims at the design of complex software and hardware systems. Future work could be the development of a more formal version of the Design G” odel machine and a potential implementation.

“The ‘thrust’ is not coming from the EmDrive, but from some electromagnetic interaction,” the team reports in a proceeding for a recent conference on space propulsion.

The first independent tests of the EmDrive suggest there’s a mundane explanation for the wildly controversial device.

Concept artist Maciej Rebisz created this awesome image of Project Lyra laser sail spacecraft flying by the interstellar asteroid ‘Oumuamua! Please have a look at the Project Lyra paper, which is currently going viral: https://arxiv.org/abs/1711.03155

You can find more of Maciej’s incredible art here:

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Back in October, the announcement that the first interstellar asteroid triggered a flurry of excitement. Since that time, astronomers have conducted follow-up observations of the object known as 1I/2017 U1 (aka. ‘Oumuamua) and noted some rather interesting things about it. For example, from rapid changes in its brightness, it has been determined that the asteroid is rocky and metallic, and rather oddly-shaped.

Observations of the asteroid’s orbit have also revealed that it made its closest pass to our Sun back in September of 2017, and it is currently on its way back to interstellar space. Because of the mysteries this body holds, there are those who are advocating that it be intercepted and explored. One such group is Project Lyra, which recently released a study detailing the challenges and benefits such a mission would present.

The study, which recently appeared online under the title “Project Lyra: Sending a Spacecraft to 1I/’Oumuamua (former A/2017 U1), the Interstellar Asteroid”, was conducted by members of the Initiative for Interstellar Studies (i4iS) – a volunteer organization that is dedicated to making interstellar space travel a reality in the near future. The study was supported by Asteroid Initiatives LLC, an asteroid-prospecting company that is dedicated to facilitating the exploration and commercial exploitation of asteroids.

For the first time ever astronomers have studied an asteroid that has entered the Solar System from interstellar space. Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was traveling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object. The new results appear in the journal Nature on 20 November 2017.

On 19 October 2017, the Pan-STARRS 1 telescope in Hawai‘i picked up a faint point of light moving across the sky. It initially looked like a typical fast-moving small asteroid, but additional observations over the next couple of days allowed its orbit to be computed fairly accurately. The orbit calculations revealed beyond any doubt that this body did not originate from inside the Solar System, like all other asteroids or comets ever observed, but instead had come from interstellar space. Although originally classified as a comet, observations from ESO and elsewhere revealed no signs of cometary activity after it passed closest to the Sun in September 2017. The object was reclassified as an interstellar asteroid and named 1I/2017 U1 (‘Oumuamua) [1].

“We had to act quickly,” explains team member Olivier Hainaut from ESO in Garching, Germany. “‘Oumuamua had already passed its closest point to the Sun and was heading back into interstellar space.”

Our Andromeda interstellar probe article has been featured in MlT Technology Review :

Business Impact.

Femto-spacecraft could travel to alpha centauri.

Earth’s nearest exoplanet twin orbits a star about four light years from here. Now scientists say it’s possible to visit this system in our lifetimes by propelling a tiny spacecraft on the tip of a laser beam.