Kepler’s legacy — Since March 2009, NASA has discovered more than 2600 planets, including potentially habitable ones, thanks to the Kepler Space Telescope. Last week, after nearly a decade of hunting for new planets, the Kepler finally ran out of fuel. NASA decided to officially retire Kepler within its current orbit, away from Earth, on Oct. 30, 2018.
NASA plans to continue the hunt for new planets. While Kepler’s mission was to search for planets about 3000 light-years away, NASA launched a new spacecraft called Transiting Exoplanet Survey Satellite, or TESS for short, in April of this year to search every star within 100 light-years of Earth.
~ Kepler kept on keeping on – until last week, anyway.
Earth weighed with ghost particles — Scientists have to use some roundabout methods to weigh the Earth and measure what’s inside it – typically, they’ve used sound waves and the strength of gravity to make their calculations. But one team has weighed the Earth in a whole new way: by measuring mysterious cosmic particles that pass through it.
~ Yeah, well, how much does it weigh, then?!
Chiplets to keep up with Moore’s Law — As chipmakers struggle to keep up with Moore’s law, they are increasingly looking for alternatives to boost computers’ performance. Moore’s Law is slowing. More density costs more and takes longer.
Chip chiefs say chiplets will enable their silicon architects to ship more powerful processors more quickly. One reason is it’s quicker to mix and match modular pieces linked by short data connections than to painstakingly graft and redesign them into a single new chip.
~ They’re like high-tech lego blocks.
Placebo Effect is surprisingly effective — For decades science has acknowledged the placebo effect insofar as it is constantly trying to fight against it – that humans have this pesky thing about healing themselves sometimes better than the actual drugs can. This has led to an entire interdisciplinary field trying to fold the placebo effect back into medicine, something that is worked into treatment, and not controlled out of drug trials.
~ I remember asking my daughter if she’d like a placebo for her hypochondria. Since she was only 4, this ploy worked very well for both of us.
Making biological cells from scratch — Researchers have been trying to create artificial cells for more than 20 years, piecing together biomolecules in just the right context to approximate different aspects of life. They generally fall into three categories: compartmentalisation, or the separation of biomolecules in space; metabolism, the biochemistry that sustains life; and informational control, the storage and management of cellular instructions.
The pace of work has been accelerating, thanks in part to recent advances in microfluidic technologies, which allow scientists to coordinate the movements of minuscule cellular components (main picture, above).
~ Life beckons. Then what?
Lasers reveal how plants produce oxygen — An experiment using intense laser pulses has allowed scientists to watch plants produce oxygen from water part of photosynthesis in real time, according to a groundbreaking new paper.
Photosynthesis fixes carbon dioxide into sugars and creates oxygen out of water in the presence of sunlight, turning the sun into usable energy. Scientists hope to understand this reaction and incorporate it into solar energy technology. This new study using one of the world’s brightest lasers to present a view of the intermediate steps of the reaction – a movie of the reaction occurring.
~ I’m breathing easier already.
Doing without plastic: what to use instead? Packaging designer Ryan Gaither believes in the power of cardboard. At the Swedish-owned BillerudKorsnäs design lab in Portland, Oregon, he’s laid down a massive sheet of it, as big as a king-size bed. He flips the switch on a machine that zips around the cardboard, stabbing and cutting it like a robotic exact-o knife.
BillerudKorsnäs is primarily a paper company that prides itself on its sustainably managed forests. It also has a process – the details of which it won’t divulge – that it says produces super strong paper. Every time you replace plastic with paper, it does more than reduce plastic pollution. It also helps climate change since plastic is made from fossil fuels.
~ Great stuff.