ToughSFさんのイラストまとめ

How close does a Supernova have to be to threaten life on Earth with its neutrino flux?

For a 20 solar mass star, it is 0.3 lightyears according to this paper (so basically impossible):
https://t.co/LZSStcxtDp

Microgravity and vacuum let you build spacecraft of totally alien structure and configuration... I wish artists used their imagination to maximum effect, like 'Bernard Chan'.
#space #art
https://t.co/zgZW9QRuX7

The gas giants Jupiter and Saturn spin once every ~10 hours... but actually it should be faster due to runaway accretion during planetary formation.
Instead, the planet's own magnetic field is found to act like a brake to slow down its rotation rate:
https://t.co/063jn0DeP1

The Philip Bono Mars Glider launching to rendezvous with a curious inflatable space station.
#space #art from the SDASM Archives.
https://t.co/JNM6qrnNaR

Spectacular!
Journey to a black hole, featuring a very realistic interstellar spaceship. This is one cosmic entity you don't want to get near to...
#space #art by Vadim Sadovski.
https://t.co/yR3K8vXXvU

Monitoring neural activity with optical fibers:
https://t.co/suKVyrktMm
The fibers have half their cladding replaced by gold foils that respond to neuron action potentials via Surface Plasma Resonance, which in turn affects a laser beam inside the fiber.

Mining an icy moon.
It seems to be a cross between 'Avatar' and 'Frostpunk'.
Great scenery by 'su jian'.
#space #art
https://t.co/g0UNIuKSv1

Various spaceship art by @meganerid.
I like the quad Phalanx CIWS on
the corvette and the oversized RCS clusters on the railgun platform the most.
#space #art
https://t.co/ozwHuCr0Gb

A paper on optical concentrators that includes a nice overview of direct solar-pumped lasers with diagrams in better quality than I've seen elsewhere:
https://t.co/CkkvEwlgta

Mars holds 130 to 260m worth of water in its polar ice caps and frozen underground. It may even be as much as 500m worth of water!
https://t.co/N5C0qPLq9t