Lifeboat Foundation

The US Army is moving forward with a new 100-kW laser weapon, awarding US$10 million to Lockheed Martin and Dynetics to continue development of the High Energy Laser Tactical Vehicle Demonstrator (HEL TVD). Designed to counter low cost, high volume threats, the new mobile battlefield laser is the latest in the American effort to produce incrementally more powerful and accurate directed energy weapons.

By allowing them to launch higher-power small satellites on smaller rockets, as opposed to the larger, and more expensive rockets that current technology requires.

Made in Space is developing power systems for small satellites that can provide up to 5 kW of solar power and is enabled by the company’s Archinaut on-orbit manufacturing and assembly technology. Current small satellites are typically constrained to 1 kW of power or less.

Made in Space CEO Andrew Rush pictured next to a subscale version of a solar array that the company can produce in space. The golden Mylar pieces are physical mockups of what would be solar blankets. This solar array is over 3 m tall. (Made in Space)

Continue reading “Made in Space believes its on-orbit manufactured power supply can save militaries money” »

Do you feel squeamish about eating a burger that didn’t come from a cow? Most Americans don’t when confronted with how bad meat is for the environment.

Depleting gut microbiome in mice leads to better insulin sensitivity.

Somewhat serendipitously, Salk Institute researchers discovered that depleting the microbiomes of mice causes the animals to have lower levels of blood glucose as well as improved insulin sensitivity [1].

Abstract

Continue reading “Glucose and the Gut Microbiome” »

On September 29th, 2017, SpaceX CEO Elon Musk unveiled detailed plans of the Big Falcon Rocket at the 68th International Astronautical Congress in Adelaide, Australia. It was a follow-up speech to the prior year’s presentation when he first discussed the architecture of what was then called the Interplanetary Transport System. In his highly anticipated speech, Musk laid out the detailed plans for a two stage rocket to enable the colonization of Mars, a moon base, and hypersonic long-distance travel on Earth.

The design featured an enormous Booster that would be powered by 31 Raptor engines, planned to be the world’s most advanced and highest pressure chemical rocket engine. Following stage separation, the booster would return to Earth and land near or on the launch pad.

There were three variants of the rocket’s second stage planned: a Spaceship, Tanker and Cargo Lifter. The primary of which, the BFR Spaceship, was also the colonization vehicle and that could carry up to 100 passengers and a hundred tonnes of cargo. One possible use of the Spaceship was as the world’s first hypersonic passenger transport vehicle, which would enable travel between any two points on Earth in under an hour. Its primary envisioned mission, however, was to be a colonization vehicle for the Moon, Mars and beyond.

Demo test, abort test, finish COPVs, test fuel loading, and so on. It’s a long list.

https://youtube.com/watch?v=giIsJ1LhtLU

The Earth discovered it was living in a new slice of time called the Meghalayan Age in July 2018. But the announcement by the International Union of Geological Sciences (IUGS) confused and angered scientists all around the world.

In the 21st century, it claimed, we are still officially living in the Holocene Epoch, the warm period that began 11,700 years ago after the last ice age. But not only that: within the Holocene, we are also living in this new age – the Meghalayan – and it began 4,250 years ago.

Continue reading “Anthropocene vs Meghalayan—why geologists are fighting over whether humans are a force of nature” »

If an earthbound technology might be revolutionary in space, what does it take to find out?

But the grand work-changing projects of A.I., like self-driving cars and humanoid robots, are not yet commercial products. A more humble version of the technology, instead, is making its presence felt in a less glamorous place: the back office.

Artificial intelligence software is making its presence felt in subtle ways, in an unglamorous place: the back office.