NASA Mega Moon Rocket Passes Key Test, Readies for Launch

The largest rocket element NASA has ever built, the core stage of NASA’s Space Launch System (SLS) rocket, fired its four RS-25 engines for 8 minutes and 19 seconds Thursday at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Source: NASA Breaking news NASA Mega Moon Rocket Passes Key Test, Readies for Launch

NASA Joins White House National Climate Task Force

As a leading agency observing and understanding environmental changes to Earth, NASA has joined the National Climate Task Force. Source: NASA Breaking news NASA Joins White House National Climate Task Force

NASA, SpaceX Sign Joint Spaceflight Safety Agreement

NASA and SpaceX have signed a joint agreement to formalize both parties’ strong interest in the sharing of information to maintain and improve space safety. Source: NASA Breaking news NASA, SpaceX Sign Joint Spaceflight Safety Agreement

This AI Uses Your Brain Activity to Create Fake Faces It Knows You’ll Find Attractive

This AI Uses Your Brain Activity to Create Fake Faces It Knows You’ll Find Attractive Looks aren’t everything. But they must be something, otherwise dating apps like Tinder and Bumble wouldn’t be having nearly as much success as they are. Unfortunately, you can’t tell just from someone’s appearance whether you’re likely to get along with them—and equally importantly when it comes to the world of swiping, whether they find you attractive in return. A new AI could throw a wrench in the already-overwhelming world of dating apps. Developed by a team from the University of Helsinki and Copenhagen University, the…

Micrometer-sized electrically programmable shape-memory actuators for low-power microrobotics

Shape-memory actuators allow machines ranging from robots to medical implants to hold their form without continuous power, a feature especially advantageous for situations where these devices are untethered and power is limited. Although previous work has demonstrated shape-memory actuators using polymers, alloys, and ceramics, the need for micrometer-scale electro–shape-memory actuators remains largely unmet, especially ones that can be driven by standard electronics (~1 volt). Here, we report on a new class of fast, high-curvature, low-voltage, reconfigurable, micrometer-scale shape-memory actuators. They function by the electrochemical oxidation/reduction of a platinum surface, creating a strain in the oxidized layer that causes bending. They…

Endoscopy-assisted magnetic navigation of biohybrid soft microrobots with rapid endoluminal delivery and imaging

High-precision delivery of microrobots at the whole-body scale is of considerable importance for efforts toward targeted therapeutic intervention. However, vision-based control of microrobots, to deep and narrow spaces inside the body, remains a challenge. Here, we report a soft and resilient magnetic cell microrobot with high biocompatibility that can interface with the human body and adapt to the complex surroundings while navigating inside the body. We achieve time-efficient delivery of soft microrobots using an integrated platform called endoscopy-assisted magnetic actuation with dual imaging system (EMADIS). EMADIS enables rapid deployment across multiple organ/tissue barriers at the whole-body scale and high-precision delivery…

Swarming behavior and in vivo monitoring of enzymatic nanomotors within the bladder

Enzyme-powered nanomotors are an exciting technology for biomedical applications due to their ability to navigate within biological environments using endogenous fuels. However, limited studies into their collective behavior and demonstrations of tracking enzyme nanomotors in vivo have hindered progress toward their clinical translation. Here, we report the swarming behavior of urease-powered nanomotors and its tracking using positron emission tomography (PET), both in vitro and in vivo. For that, mesoporous silica nanoparticles containing urease enzymes and gold nanoparticles were used as nanomotors. To image them, nanomotors were radiolabeled with either 124I on gold nanoparticles or 18F-labeled prosthetic group to urease. In…

Good reactions for low-power shape-memory microactuators

Microscale programmable shape-memory actuators based on reversible electrochemical reactions can provide exciting opportunities for microrobotics. Source: Science Mag: Good reactions for low-power shape-memory microactuators

NASA to Host Briefing to Preview First Mars Helicopter Flights

NASA will hold a virtual media briefing at 1:30 p.m. EDT (10:30 a.m. PDT) Tuesday, March 23, to discuss upcoming activities for the agency’s Ingenuity Mars helicopter. Source: NASA Breaking news NASA to Host Briefing to Preview First Mars Helicopter Flights

Origin of Life: Lightning Strikes May Have Provided Missing Ingredient for Earth’s First Organisms

Origin of Life: Lightning Strikes May Have Provided Missing Ingredient for Earth’s First Organisms The origin of life on Earth is one of the most complex puzzles facing scientists. It involves not only identifying the numerous chemical reactions that must take place to create a replicating organism, but also finding realistic sources for the ingredients needed for each of the reactions. One particular problem that has long faced scientists who study the origin of life is the source of the elusive element, phosphorus. Phosphorus is an important element for basic cell structures and functions. For example, it forms the backbone…

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