NASA has selected 16 cool new futuristic space technology concepts for further study. Four of them are from NASA’s own Jet Propulsion Laboratory (JPL), including a railway system on the moon to move cargo. Source: https://earthsky.org/space/futuristic-space-technology-concepts-nasa-jpl-niac…
Tag: Structures
The distance to the North Polar Spur
One of the largest structures in the Milky Way galaxy, the North Polar Spur, was discovered at radio and X-ray wavelengths. The Spur is a giant ridge of bright emission that rises roughly perpendicularly out of the plane of the galaxy starting roughly in the constellation of Sagittarius and then curves upward, stretching across the sky for over thirty degrees (the…
Through the looking glass: Artificial molecules open door to ultrafast polaritonic devices
Researchers from Skoltech and the University of Cambridge have shown that polaritons, the quirky particles that may end up running the quantum supercomputers of the future, can form structures behaving like molecules—and these “artificial molecules” can potentially be engineered on demand. The paper outlining these results was published in the journal Physical Review B. …
What is a quasar?
A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…
Watch ISS spacewalk February 28
On Sunday, February 28, 3 astronauts will perform the first in a pair of International Space Station spacewalks to ready the station for solar array upgrades. How to watch live. Source: https://earthsky.org/space/watch-iss-spacewalk-feb-mar-2021…
Why does this galaxy look older than its years?
To the extent that we can see them, galaxies in the very early universe should look relatively young and unformed. But galaxy ALESS 073.1 is a surprise to astronomers: it looks more mature than we’d have any reason to expect. Why? Source: https://earthsky.org/space/galaxy-looks-older-than-its-years-aless-073-1…
Big data to model the evolution of the cosmic web
The Instituto de Astrofísica de Canarias (IAC) has led an international team which has developed an algorithm called COSMIC BIRTH to analyze large scale cosmic structures. This new computation method will permit the analysis of the evolution of the structure of dark matter from the early universe until the formation of present day galaxies. This work was recently published in the…
Can air pollution help us find alien life?
To find alien life in our universe, scientists have considered searches for optical lasers or even giant energy-harvesting structures known as Dyson spheres. Now they’re suggesting a more mundane sort of search, a hunt for air pollution in exoplanet atmospheres. Source: https://earthsky.org/space/can-pollution-help-us-find-alien-life…
What is the Milky Way?
When someone says “Milky Way,” do you think of the starry pathway across our sky, or of the great pinwheel-shaped galaxy in space? Both are correct! Source: https://earthsky.org/astronomy-essentials/what-is-the-milky-way-galaxy…
Golang Approves Generics, While Python Accepts Pattern-Matching Proposals
From today’s “This Week in Programming” column:
Rejoice, long at last, all you Gophers, for the question of whether or not the Go programming language will adopt generics has finally, after many years of debate, been answered this week with the acceptance of a proposal made last month. In this most recent proposal, Golang team member Ian Lance Taylor writes that generics…