Lifeboat Foundation

NASA is warning that meteors pose a major threat to Earth, so agencies are already testing out ways to defend against them by using lasers or by ramming spacecraft into them.

During a conference last week, NASA administrator Jim Bridenstine explained that not taking meteors seriously could have catastrophic consequences. In 2013, a 20-metre meteor exploded over Russia and the sonic boom caused windows and glass to shatter, injuring more than 1,000 people.

That relatively small meteor contained more than 30 times the energy of the atomic bomb the United States dropped on Hiroshima during the Second World War.

Continue reading “Catastrophic meteors: How space scientists hope to protect ‘the only planet we know’” »

These are the adventures of the “StarChip Wafersize.”

UC Santa Barbara students sent up, via balloon, a prototype miniature spacecraft that might eventually become the “wafercraft” that researchers posit could be propelled by lasers to achieve space travel at relativistic speeds to reach nearby star systems and exoplanets.

So begins a journey, funded by NASA and several private foundations, that may one day lead to interstellar travel.

Continue reading “Experimental cosmologist group launches its first iterations of space-traveling ‘wafercraft’” »

The latest SpaceX Dragon cargo mission to the International Space Station (ISS) included an experiment that could help to combat the ravages of time here on Earth. The European experiment will test how ceramic nanoparticles interact with cells to act as an anti-aging supplement that not only holds promise for alleviating the effects of growing old, but also for combatting chronic illness and space-related stresses for astronauts on prolonged space missions.

At last, it’s done. The biggest spaceship size chart ever created is now complete and fully operational. 4,268 × 5,690 pixels of technological terror that includes everything from the smaller Star War ships to EVE. According to its author, Dirk Loechel, this is the last update. It’s epic.

The last update

For real this time: This is the final major content update, though if there are issues I’ll still fix them. I also haven’t forgotten I wanted to vectorize the writing. It’s still on the radar. But content-wise, I think that is about all I can put in.

Continue reading “The biggest comparison of sci-fi spaceships ever is complete at last” »

A “spaceplane” that will be able to travel at 25 times the speed just reached a major breakthrough.

Reaction Engines is working with the European Space Agency and the UK Space Agency to develop a hypersonic aircraft that could zip from New York to London in just one hour.

The British aerospace manufacturer has tested the an essential piece of equipment called a precooler, which prevents the plane’s engine from overheating.

Continue reading “This Hypersonic ‘Space Plane’ Can Fly at 25 TIMES the Speed of Sound” »

A few years ago, a friend and fellow author Manu Saadia (author of Trekonomics: The Economics of Star Trek) posed a question to me about the viability of creating actual cities on other planets. It was, in his mind, one of the few things about Star Trek which seemed unrealistic, because of the fact that cities here on Earth thrive due to one important reason: imports/exports, i.e. resource exchange.

As we continue planning ahead for the future of both space travel and space colonization, the need for advanced 3D printing will ultimately dictate our ability to maintain viable civilizations on other planets.

Continue reading “3D Printing and the Viability of Interplanetary City Construction” »

“Astronauts at the international space station expecting a delivery on Monday that private company SpaceX launched a cargo capsule loaded with supplies from Cape Canaveral early this morning the shipment. The company’s seventeenth to the orbiting outpost includes a new instrument to measure CO two in the atmosphere. Then peers Rebecca hersher reports it will be attached. To the space station measuring how much carbon dioxide is. In the atmosphere is really fundamental for understanding how the climate is changing. But it’s difficult for one thing. The amount of co two varies each day and each season and each year and measurements have to be both global and extremely precise. The new instrument can do both. It’s designed to scan the earth measuring not only how much co two is entering the atmosphere. But how much of the greenhouse gas is being absorbed by plants and oceans the instrument is called the orbiting carbon observatory three two other versions. Have previously been launched. Overall. NASA says the ability to measure co two from space has already helped scientists better understand our climate and predict how it will change”

KQED Radio

Continue reading “SpaceX launches unpiloted cargo ship to space station” »

See photos from the 11th test flight of Blue Origin’s New Shepard spacecraft. The reusable rocket and capsule aced the launch and landing at Blue Origin’s West Texas test site on May 2, 2019.

In air-breathing vertebrates, the circulatory and pulmonary systems contain separate networks of channels that intertwine but do not intersect with each other. Recreating such structures within cell-compatible materials has been a major challenge; even a single vasculature system can be a burden to create. Grigoryan et al. show that natural and synthetic food dyes can be used as photoabsorbers that enable stereolithographic production of hydrogels containing intricate and functional vascular architectures. Using this approach, they demonstrate functional vascular topologies for studies of fluid mixers, valves, intervascular transport, nutrient delivery, and host engraftment.

Science, this issue p. 458

Solid organs transport fluids through distinct vascular networks that are biophysically and biochemically entangled, creating complex three-dimensional (3D) transport regimes that have remained difficult to produce and study. We establish intravascular and multivascular design freedoms with photopolymerizable hydrogels by using food dye additives as biocompatible yet potent photoabsorbers for projection stereolithography. We demonstrate monolithic transparent hydrogels, produced in minutes, comprising efficient intravascular 3D fluid mixers and functional bicuspid valves. We further elaborate entangled vascular networks from space-filling mathematical topologies and explore the oxygenation and flow of human red blood cells during tidal ventilation and distension of a proximate airway. In addition, we deploy structured biodegradable hydrogel carriers in a rodent model of chronic liver injury to highlight the potential translational utility of this materials innovation.

Continue reading “Multivascular networks and functional intravascular topologies within biocompatible hydrogels” »