Lifeboat Foundation

Water scarcity is a global security risk. Researchers are developing ways to forecast risks to prevent conflicts.

A plant grows between cracked mud at the Theewaterskloof dam near Cape Town, South Africa, on Jan. 21, 2018. The dam, which supplies most of Cape Town’s potable water, is currently dangerously low as the city faces “Day Zero”, the point at which taps will be shut down across the city. Mike Hutchings / Reuters file.

For its 2018 finale, A SpaceX Falcon 9 rocket will launch the U.S. Air Force’s first third-generation navigation satellite for the Global Positioning System (GPS 3–01) from Cape Canaveral Air Force Station in Florida.

Liftoff window begins at 8:51 a.m. EST (1351 GMT).

Continue reading “WATCH LIVE: SpaceX to Launch Falcon 9 Rocket #GPS III-1 #2018Finale @8:51am EST” »

Digital security depends on the difficulty of factoring large numbers. A new proof shows why one method for breaking digital encryption won’t work.

“We’re sorry this happened,” Tomer Bar, engineering director at Facebook, wrote in a blog post about the flaw.

The flaw allowed apps that users accessed through the social network’s “Facebook Login” system to see photos that had been uploaded but not published on Facebook, as well as photos published to Facebook’s “Marketplace” and to its Stories feature.

“The bug also impacted photos that people uploaded to Facebook but chose not to post,” Bar wrote.

Continue reading “Facebook apologizes after security flaw exposes unpublished photos” »

We’ve discovered water on the asteroid Bennu! Our OSIRIS-REx mission has revealed water locked inside the clays that make up Bennu.

Recently analyzed data from NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission has revealed water locked inside the clays that make up its scientific target, the asteroid Bennu.

Continue reading “NASA’s Newly Arrived OSIRIS-REx Spacecraft Discovers Water on Bennu” »

Holography is a powerful tool that can reconstruct wavefronts of light and combine the fundamental wave properties of amplitude, phase, polarization, wave vector and frequency. Smart multiplexing techniques (multiple signal integration) together with metasurface designs are currently in high demand to explore the capacity to engineer information storage systems and enhance optical encryption security using such metasurface holograms.

Holography based on metasurfaces is a promising candidate for applications in optical displays/storage with enormous information bearing capacity alongside a large field of view compared to traditional methods. To practically realize metasurface holograms, holographic profiles should be encoded on ultrathin nanostructures that possess strong light-matter interactions (plasmonic interactions) in an ultrashort distance. Metasurfaces can control light and acoustic waves in a manner not seen in nature to provide a flexible and compact platform and realize a variety of vectorial holograms, with high dimensional information that surpass the limits of liquid crystals or optical photoresists.

Among the existing techniques employed to achieve highly desired optical properties, polarization multiplexing (multiple signal integration) is an attractive method. The strong cross-talk associated with such platforms can, however, be prevented with birefringent metasurfaces (two-dimensional surfaces with two different refractive indices) composed of a single meta-atom per unit-cell for optimized polarization multiplexing.

Continue reading “Multichannel vectorial holographic display and encryption” »

Tesla launched a new ‘Enhanced Anti-theft’ system as an aftermarket product last month and we now take a first look at one of the very first installations on a Model X.

There have been strings of Tesla thefts earlier this year that prompt the automaker to offer several new security features.

We reported on several Tesla vehicle thefts through relay attacks in Europe earlier this year.

The longer-term answer is to develop and scale up the quantum communication network and, subsequently, the quantum internet. This will take major investments from governments. However, countries will benefit from the greater security offered13. For example, Canada keeps its census data secret for 92 years, a term that only quantum cryptography can assure. Government agencies could use quantum-secured blockchain platforms to protect citizens’ personal financial and health data. Countries leading major research efforts in quantum technologies, such as China, the United States and members of the European Union, will be among the early adopters. They should invest immediately in research. Blockchains should be a case study for Europe’s Quantum Key Distribution Testbed programme, for example.

Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky. Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky.

As an international relations scholar who studies space law and policy, I have come to realize what most people do not fully appreciate: Dealing with space debris is as much a national security issue as it is a technical one.

Considering the debris circling the Earth as just an obstacle in the path of human missions is naive. As outer space activities are deeply rooted in the geopolitics down on Earth, the hidden challenge posed by the debris is the militarization of space technologies meant to clean it up.

To be clear, space debris poses considerable risks; however, to understand those risks, I should explain what it is and how it is formed. The term “space debris” refers to defunct human-made objects, relics left over from activities dating back to the early days of the space age. Over time that definition has expanded to include big and small things like discarded boosters, retired satellites, leftover bits and pieces from spacecraft, screwdrivers, tools, nuts and bolts, shards, lost gloves, and even flecks of paint.

Continue reading “The Hidden Danger of Cleaning Up Our Space Junk” »