I'd bet on a bad update or configuration change. (likely one that prevents the affected systems from reaching the internet and being automatically rolled back)
For wideband filters used for stars and galaxies, yes. Sometimes the filters are wider then the entire visible spectrum.
For narrowband filters used to isolate emission from a particular element, no. If you have just the Oxygen-III signal isolated from everything else, you can composite it as a perfect turquoise color.
The problem with hyperspectral imaging is that it ends up throwing away 99.9% of all the light that hits your camera. It's been done for the sun and some very bright nebulae, but really isn't practical for most of the stuff in space.
That's common in high end astophotography, and almost exclusively used at professional observatories. However, scientists like filters that are "rectangular", with a flat passband and sharp falloff, very unlike human color vision.
Importantly, the planets aren't actually lined up nicely like on the site. Right now, Mars is ~5 times further then shown.
That's why so many people were taking pictures of Mars back in January, when it was actually possible to take see detail. Right now it just looks like a red orb.
They do state the test conditions "at 94 dB SPL, 1 kHz", but don't specify the units attacked to the actually measurement. It's given as a ratio to an unspecified quantity.