Lifeboat Foundation

To a non-physicist, an “atomic beam collimator” may sound like a phaser firing mystical particles. That might not be the worst metaphor to introduce a technology that researchers have now miniaturized, making it more likely to someday land in handheld devices.

Today, atomic beam collimators are mostly found in physics labs, where they shoot out atoms in a beam that produces exotic quantum phenomena and which has properties that may be useful in precision technologies. By shrinking collimators from the size of a small appliance to fit on a fingertip, researchers at the Georgia Institute of Technology want to make the technology available to engineers advancing devices like atomic clocks or accelerometers, a component found in smartphones.

“A typical device you might make out of this is a next-generation gyroscope for a precision navigation system that is independent of GPS and can be used when you’re out of satellite range in a remote region or traveling in space,” said Chandra Raman, an associate professor in Georgia Tech’s School of Physics and a co-principal investigator on the study.

Continue reading “Atomic beams shoot straighter via cascading silicon peashooters” »

China’s private rocket company LinkSpace successfully launched a reusable rocket in east China’s Shandong Province on Friday. The RLV-T5 rocket flew to a height of 40 meters and then safely landed, in 30 seconds.

On March 27, the company finished its first low-altitude launch at a height of 20 meters.

Whenever the term “reusable rocket” is mentioned, people would at once link it to the U.S. giants like SpaceX and Blue Origin. Now, China’s LinkSpace is hoping to make its presence felt in the market.

Continue reading “China’s LinkSpace successfully launches reusable rocket to a new height” »

Ryan Weed updates the work at Positron Dynamics at Space Access 2019. Positron Dynamics has completed the NASA NIAC study. They are applying for some Small Business Innovation Research (SBIR) grants.

Positron Dynamics will use Krypton isotopes to generate positrons. They would breed more Krypton isotopes. They sidestep the issue of antimatter storage. It would take 10 school buses of volume at the Brillouin limit to trap 1 microgram.

Continue reading “Antimatter Catalyzed Fusion Propulsion Update” »

SABRE could enable cheaper, more efficient flight, advocates say.

One of Huntsville’s historic Apollo engine test stands is coming back to life under an agreement between NASA and Jeff Bezos’ Blue Origin space company.

NASA announced Wednesday it has signed an agreement to let Blue Origin use Marshall Test Stand 4670 to test its BE-3U and BE-4 rocket engines. The BE-4 has been selected to power United Launch Alliance’s new Vulcan rocket and Blue’s New Glenn rocket.

Both rockets are being built to power new boosters for America’s three key space markets: NASA, commercial companies like ULA and national security customers such as the Air Force.

Continue reading “It’s official: Blue Origin will bring rocket engine tests back to Huntsville” »

Do everything in your power to keep the acquisition on schedule.

On April 25, a SpaceX Falcon 9 rocket will launch cargo to the space station and two organs-on-a-chip experiments designed by University of Pennsylvania scientists. They want to understand why so many astronauts get infections while in space. NASA has reported that 15 of the 29 Apollo astronauts had bacterial or viral infections. Between 1989 and 1999, more than 26 space shuttle astronauts had infections.

Huh and his team have created two separate experiments for this first launch. The first essentially mimics an infection inside a human airway, to see what happens to the bacteria, and the surrounding cells, in orbit. Huh’s BIOLines lab created the actual chips.

A lung chip is made of a polymer, and a permeable membrane is the platform for the human cells. For the lung-on-a-chip, one side of the membrane is coated with lung cells, to process the air, and capillary cells on the other, to provide the blood flow. The membrane is stretched and released to provide the bellows-like effect of real lungs.

Continue reading “Organs on a Chip Experiments Will Investigate the High Rate of Infections in Astronauts” »

A Harvard physicist has shown that wormholes can exist: tunnels in curved space-time, connecting two distant places, through which travel is possible.

But don’t pack your bags for a trip to other side of the galaxy yet; although it’s theoretically possible, it’s not useful for humans to travel through, said the author of the study, Daniel Jafferis, from Harvard University, written in collaboration with Ping Gao, also from Harvard and Aron Wall from Stanford University.

“It takes longer to get through these wormholes than to go directly, so they are not very useful for space travel,” Jafferis said. He will present his findings at the 2019 American Physical Society April Meeting in Denver.

SpaceX will launch NASA’s $69 million mission to crash a spacecraft into an ASTEROID in 2021 to test methods that could save Earth from deadly impacts…

The groundbreaking mission will be the first demonstrated attempt to deflect an asteroid by purposely crashing an object into it at high speed.

After launching from California’s Vandenberg Air Force base atop a Falcon 9 rocket in 2021, the DART craft is expected to reach the object Didymos in October 2022, when it’s 11 million kilometers (6.8 million miles) from Earth.

Continue reading “SpaceX will launch NASA’s mission to crash spacecraft into an asteroid” »