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When a massive star somewhere in our galaxy runs out of fuel, it collapses and explodes in a supernova.
The death of that star is the birth of a neutron star: one of the densest known objects in the universe:
Nov 20, 2018
Space Station Crew Discusses 20 Years of Operations
Posted by Michael Lance in categories: engineering, space
Twenty years ago today, construction began on the greatest international science and engineering project in human history — the International Space Station. In case you missed it, we celebrated the occasion by talking to the crew currently living and working in space. Take a look: https://go.nasa.gov/2qVKqt9 #SpaceStation20th
Climate change, global climate change, global warming, natural hazards, Earth, environment, remote sensing, atmosphere, land processes, oceans, volcanoes, land cover, Earth science data, NASA, environmental processes, Blue Marble, global maps.
Nov 20, 2018
Lasers may help experts understand cancer
Posted by Genevieve Klien in categories: biotech/medical, nanotechnology, neuroscience
Scientists in Fife are investigating if tiny lasers could be used to better understand diseases such as cancer.
Using nano-technology, the St Andrews University experts created lasers small enough to fit inside live cells which can then be tracked.
With a diameter of a thousandth of a millimetre, the lasers can be inserted into neurons or immune cells.
Nov 20, 2018
This Guy Has to Be One of the Best Drone Pilots in The World
Posted by Genevieve Klien in category: drones
A few years ago I wrote about how YouTube opened up rallying to the world in a way that it never had before, taking the sport out of forests and onto screens everywhere. I didn’t expect the same of drones and drifting but here we are.
Nov 20, 2018
When AI and optoelectronics meet: Researchers take control of light properties
Posted by Genevieve Klien in category: robotics/AI
Using machine-learning and an integrated photonic chip, researchers from INRS (Canada) and the University of Sussex (UK) can now customize the properties of broadband light sources. Also called “supercontinuum”, these sources are at the core of new imaging technologies and the approach proposed by the researchers will bring further insight into fundamental aspects of light-matter interactions and ultrafast nonlinear optics. The work is published in the journal Nature Communications on November 20, 2018.
Nov 20, 2018
We’re going to Jezero!
Posted by Alberto Lao in categories: chemistry, climatology, space
At Jezero, Mars 2020’s goal will be “to explore the history of water and chemistry in an ancient crater lake basin and associated river-delta environments to probe early Martian climates and search for life.”
NASA announced this morning the selection of Jezero crater for the landing site of the Mars 2020 mission. Jezero is a 45-kilometer-wide crater that once held a lake, and now holds a spectacular ancient river delta.
Nov 20, 2018
Deep sea mining zone hosts carbon dioxide-consuming bacteria, scientists discover
Posted by Genevieve Klien in category: food
Scientists have discovered that bacteria in the deepest parts of the seafloor are absorbing carbon dioxide and could be turning themselves into an additional food source for other deep-sea life.
Nov 20, 2018
Meta-surface corrects for chromatic aberrations across all kinds of lenses
Posted by Genevieve Klien in categories: materials, mobile phones
Today’s optical systems—from smartphone cameras to cutting-edge microscopes—use technology that hasn’t changed much since the mid-1700s. Compound lenses, invented around 1730, correct the chromatic aberrations that cause lenses to focus different wavelengths of light in different spots. While effective, these multi-material lenses are bulky, expensive, and require precision polishing or molding and very careful optical alignment. Now, a group of researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) is asking: Isn’t it time for an upgrade?