ToughSFさんのイラストまとめ

A little-discussed aspect of global point-to-point rocket transport (like Starship) is their potential to release huge amounts of nitrous oxides at high altitudes during reentry, depleting the ozone layer and increasing water vapour levels.
https://t.co/0TvQm3afpI

The F-22 has a gold-coloured canopy because there is a radar-reflecting layer of Gold between Indium Tin Oxide sheets.
The F-35 has a different pink colour because it might use the cheaper and more corrosion-resistant Aluminium-Doped Zinc.
https://t.co/dlISPJkfEV

Schematics of how interactions between the solar wind and Earth's magnetic field high up in the ionosphere creates a massive space hurricane.
https://t.co/pJvVSWSoLV

Yttrium and Lanthanum hydrides continue to break records in high temperature superconductivity, with one material
achieving that state at 288K or 15°C. Critical field is >100 Tesla.
However, this only happens at pressures of several million atmospheres.
https://t.co/WTWAP0apgX

An interstellar transport ship.
I especially like the use of explosive charges that are catapulted at high velocity debris, similar to the active protection system of a modern tank. Radiators, radiation shields, RCS is all there
#space #art by Robert Eul.
https://t.co/Kdjg4g7t7v

Most of the spectacular space photos you have seen are in false colour and look very different in reality.
This is either to reveal invisible wavelengths, or to distinguish emissions from different elements.
@voxdotcom has an excellent video: https://t.co/IIKOfAvm7C

Small unmanned submersibles packed with missiles and running on silent electric AIP: can stay underwater for months, leaving an area only for maintenance. They could create a worrisome 'permanent threat' capability with no human cost to use.
@stromgade
https://t.co/2iGlULYeNY

The Beriev 2500 is a superheavy seaplane that uses both Wing-In-Ground and high altitude flight to carry 1000 ton payloads up to 16,000km, using 1032kN of thrust and 125m wingspan.
It is suggested for use in air freight and air-launch of orbital rockets.

https://t.co/a9U9DBuvDl

The 'Spider-Tank' from the Ghost in the Shell movie, with concept versions.
By @VitalyBulgarov
https://t.co/k2P5XSwDd9

Estimates from @MAVEN2Mars data tell us Mars originally had 0.5 bar of CO2 and <24m of water, which it lost over 4B years. That's so slow that terraforming efforts shouldn't care about atmospheric losses or artificial magnetospheres
https://t.co/bJxc26IRxP
https://t.co/YxAnFdF4Dq