JWST gets best view yet of planet in hotly pursued star system
nature.com
nature.com
> JWST looked at TRAPPIST-1 in mid-infrared wavelengths of light — 20 times redder than the human eye can see
What's referred to here, in terms of wavelengths, is the range 4.9 to 27.9 μm according to https://jwst-docs.stsci.edu/jwst-mid-infrared-instrument. The longest human eyes can see is around 0.75 μm, so I guess that's where the notion of "20 times redder" comes from
I would have gone with something like "a wavelength about 7 to 40 times longer than the longest wavelength human eyes can perceive", or "longer wavelengths than a night vision scope picks up, but shorter than most thermal imagers capture or microwave ovens emit". But really, it might make more sense to have just omitted everything after "mid-infrared wavelengths of light". Kind of like the unnecessary use earlier in the article of both parsecs and light-years. Just go with light-years IMO.
There's interesting ideas for imaging exo-planets that involve a fleet of satellites past pluto that use the gravity lens of the sun as their lens. A system like that could get an image of an exo-planet.
> Researchers have been excited to use the new telescope to explore it and its six siblings, which are all roughly the size of Earth and which orbit a star 12 parsecs (39 light years) from Earth.
I think I'd just start with Alpha Centauri- 40+4 years for a return of direct images of a planet orbiting in a trinary star system.
https://www.space.com/laser-sail-centering-breakthrough-star...