Stellar flare dulls hopes for life on planets around Proxima Centauri — Scientists have discovered a flare from the sun’s closest stellar neighbour, Proxima Centauri. Many are reporting it could spell trouble for any hope for life on its exoplanet, Proxima b, and might also kill off a presumed set of other planets around the star. Last year, there were many reports that evidence of dust rings around Proxima Centuari would imply the star could have an elaborate planetary system alongside its confirmed exoplanet, Proxima b. But a new analysis of the same dataset calls those past results into question.
~ All that speculation at such distance could only ever be aProximate.
Jupiter’s Red Spot may disappear — The Great Red Spot has been a fixture of Jupiter ‘s cloudy visage for centuries and is among the most recognizable features in the solar system. But the Great Red Spot is shrinking, and recently, news stories reported it could vanish within the next 10 or 20 years. The storm’s shape is changing, most significantly in width, and as time marches on it’s becoming less oval and more circular.
~ The Great Red Spot is in fact a gigantic storm. It’s red because of the, uh, colour.
Cassini crashed into Saturn — On 15 September 2017, the Cassini spacecraft ended its valiant 13-year mission by performing a kamikaze dive into Saturn’s upper atmosphere. A new image released by NASA shows the exact spot (main picture, above) where the Cassini craft was lost to us forever.
~ Got that Saturnians? It wasn’t an attack, just callous disregard.
Saturn’s moon Enceladus has become an alien-hunting hot spot — Thought to be a barren cue-ball until NASA’s Cassini mission found both active geysers and a liquid ocean beneath its frozen surface, the icy little moon is now one of the likeliest places to encounter extraterrestrial life in our solar system. Last year, when scientists analyzed Enceladus’ ocean (actually a small drop of it blasted skyward in a geyser) they found evidence of hydrothermal reactions, which produce H2: just the kind of molecular food some little Enceladian organism might like to munch on. On Earth, similar microbes live in a deep sea hydrothermal vent off the coast of Japan.
~ Sounds yummy … maybe with a little mustard, anyhoo.
Artificially Intelligent jobs — AI will create more jobs than it destroys was the not-so-subtle rebuttal from tech giants to growing concern over the impact of automation technologies on employment. Execs from Google, IBM and Salesforce were questioned about the wider societal implications of their technologies during a panel session at Mobile World Congress.
~ I don’t yet opt in to their conclusions, myself.
Japanese engineering researchers have created a tiny electronic light the size of a firefly — They can ride waves of ultrasound, and could eventually figure in applications ranging from moving displays to projection mapping. Named Luciola for its resemblance to the firefly, the featherweight levitating particle weighs 16.2mg, has a diameter of 3.5mm (0.14 inch), and emits a red glimmer that can just about illuminate text. But its minuscule size belies the power of the 285 microspeakers emitting ultrasonic waves that hold up the light, and have a frequency inaudible to the human ear, allowing Luciola to operate in apparent total silence.
~ It’s going to annoy beings with better hearing, though – dogs, maybe?
DNA organises itself in a video — DNA, when unravelled, can span more that two meters in length, but your body’s cells whip it into tidy bundles.
We’ve long known that the body can do this. But how it accomplishes this biological feat is another thing. Now, researchers from Delft University in the Netherlands and EMBL Heidelberg in Germany have succeeded in actually catching the process on video, observing how DNA gets structured in real time.
~ Thus also solving a debate.
More early tattoos revealed — A new analysis of two ancient Egyptian mummies has uncovered the earliest known examples of ‘figural’ tattoos on human beings – that is, tattoos meant to represent real things rather than abstract symbols. What’s more, at around 5000 years old, it’s the earliest evidence of tattoos on a woman.
~ The mummies were on display for decades without anyone noticing.