Scientists locate neutron star collision that could have created our solar system’s plutonium — in 2017, observatories around the world observed a high-energy collision between a pair of dense objects, each slightly more massive than the Sun but only the size of a city. A similar collision closer to home could have been responsible for producing some of the heaviest elements in our own solar system – and scientists think they know when it happened.
Using measurements of what’s left of these elements in ancient meteorites, a pair of researchers worked backward to locate the neutron star merger that produced some of them.
~ The abundances of these elements spiked approximately 80 million years before the solar system formed.
Water worlds could have very deep oceans — Scientists have good reason to believe that so-called water worlds – exoplanets with surfaces covered entirely by a single gigantic ocean – are common in the galaxy. But new computer simulations suggests that not only are water worlds prevalent, they’re also teeming with water – and at mind-boggling scales. Imagine oceans hundreds, and even thousands, of kilometres deep.
~ That’s no reason for Kev to make a movie, though. Water worlds are still hypothetical.
Data on protein — By 2020, researchers estimate that the world’s digital archive will weigh in at around 44 trillion gigabytes. That’s an astounding amount of data that isn’t necessarily being stored in the safest of places. Most storage mediums naturally degrade over time (if they’re not hacked or accidentally destroyed) and the cloud isn’t as reliable as companies want us to believe.
So researchers at Harvard University have turned to some unique chemistry they believe could safely archive the world’s data for millions of years — without requiring any power. Chemists at Harvard University took inspiration from nature and came up with a way to store data using oligopeptides: molecules made up of amino acids that are considerably smaller and easier to work with than DNA.
~ Getting pumped? Shake it, baby.
An end to AIDS may be within sight —A landmark study found men whose HIV infection was fully suppressed by antiretroviral drugs had no chance of infecting their partner. The findings support the message of the international U=U campaign that an undetectable viral load makes HIV untransmittable.
~ A major step forward.
Pinholes aid holographic transmission — Researchers in South Korea have designed an ultrathin display that can project dynamic, multi-colored, 3D holographic images.
~ This suggests holographic displays could be projected from thin devices like cell phones.
One-step method for biodegradable plastics — Researchers in Japan and the Netherlands have devised a one-stop method to produce plant-derived plastics. Bio-based plastics are emerging as a next generation material and are expected to replace petroleum-derived plastics. A plant-derived polyester, called polyethylene furanoate (PEF), is a promising polymer derived from plants that can replace the current favourite of the plastic industry, polyethylene terephthalate (PET).
Astonishing Densiovan fossil — The archaeology world has been abuzz with news of the first Denisovan fossil found outside Siberia. The 160,000-year-old jawbone was uncovered by a Buddhist monk in a Chinese cave nearly 40 years ago.
Now that it has finally been studied, it’s known it belonged to a young Denisovan individual who occupied the cave some 160,000 years ago.
~ Home Sapiens date back 200,000 years.
New research describes the remains of a gigantic, four-legged mammalian carnivore that terrorised Africa 22 million years ago — Simbakubwa kutokaafrika, which translated from Swahili means ‘big lion coming from Africa.’ But this was no feline: it belonged to an extinct group of mammals known as hyaenodonts, which have no close relation to any species of mammalian carnivore living today. Larger than a polar bear, and with a head as big as a rhino’s, Simbakubwa spent its time as an apex predator in Eastern Africa around 22 million years ago, eventually going extinct under mysterious circumstances.
~ Honestly, record keeping back then was all over the place.