Promising new tool may help find life on Europa — Scientists have tailored an old-school chemistry technique to analyse amino acid patterns, creating a tool for sniffing out alien biosignatures in just a few grams of seawater.
The method, 10,000 times more sensitive than similar techniques used by NASA’s Mars Curiosity Rover, is ideally suited for a life-hunting mission to Jupiter’s moon Europa, or Saturn’s Enceladus, lead study author Peter Willis told Gizmodo.
~ Not so good for dry planets, then.
Odd DNA results for Scott Kelly — Astronauts Scott and Mark Kelly volunteered themselves as test subjects for NASA, which has been studying the pair since they’ve returned from their respective voyages in space: the identical twin brothers are subjects of a 10-part investigation to understand the impact of space travel on the body.
As identical twins, the brothers are genetically very similar. However, researchers found that while he was in orbit, Scott’s telomeres — the caps on the ends of chromosomes — grew longer than his twin brother’s. Though Scott’s telomeres returned to their pre-flight lengths shortly after he returned to Earth, these results were totally unexpected, since telomeres naturally shrink over the course of one’s life, and the stresses of spaceflight are supposed to accelerate this.
~ Must be a pain being born as an Identical Test Subject.
Sansar, the new virtual reality world from Second Life’s creators — after four years work, will arrive later this year on Oculus Rift and HTC Vive headsets. “It is trying to solve some of the big problems that plagued Second Life for years,” reports MIT Technology Review, “such as that most users come in through what is essentially a front door and have a hard time finding things to do once they get in… In the demos I tried, I navigated via an atlas that shows a simple clickable thumbnail image of each destination along with its name.”
~ Let me in! Reality has become so freakin’ crazy!
Want to get into physics? Wired has some tips for you.
~ No, I want to get into Sansar! Meanwhile, Siri is the maths master for converting units easily.
Concrete … what is it? we invented it, we lost it, we reinvented it — Here’s how we discovered concrete, forgot it, and then finally cracked the mystery of what makes it so strong. For concrete, we usually picture white pavements, swimming pools and building foundations. Most of us aren’t aware of concrete’s fiery volcanic origin story, or that concrete is a $100 billion dollar industry. In fact, it’s the most widely-used material on our planet after water. Ton for ton, humans use more concrete today than steel, wood, plastics, and aluminum combined.
~ “We are all Romans, unconscious collective…”