New adaptive optics shows details of our star's atmosphere

125 sohkamyung 18 5/31/2025, 11:08:29 PM nso.edu ↗

Comments (18)

itishappy · 12h ago
Utterly alien.

For reference, the field of view here is about 2.5x the diameter of the Earth. Astronomical scales remain mind bending to me.

_Adam · 11h ago
https://www.nature.com/articles/s41550-025-02564-0

The paper has more details. What's interesting to me is that the key innovation isn't the deformable mirror but rather the design of a wavefront sensor that focuses on coronal features (instead of the "grain" on the solar surface prior systems used).

srean · 6h ago
With NSO (not NSO.edu but the cyberweapons/malware company) there is a hidden tenuous pun.

Adaptive optics started in a secret space weaponry research funded by SDI.

When a few profs independently proposed the idea in their NSF research grant proposal they were told - we already know this stuff.

https://www.npr.org/2013/06/24/190986008/for-sharpest-views-...

so-rose · 8h ago
What a time to be alive. I can look at my magic enchanted light-box and observe "rain" on the surface of the sun.

It's almost nice that mysteries remain - apparently, the physical mechanism behind solar spicules [1] remains "hotly" (!!) debated.

[1]: https://en.m.wikipedia.org/wiki/Solar_spicule

tomrod · 14h ago
This was beautiful!
tsujamin · 13h ago
You say beautiful, I say existentially terrifying, let’s split the difference
srean · 5h ago
There was this sci-fi story set on the sun. Humans interact with sentient plasma, some as old as the universe. Forgetting the name.
stevenwoo · 1h ago
Sundiver is most prominent in my recollection.
itishappy · 10h ago
I feel like the moment you learn the relative scales, it's over, there's no going back.

There's a billion WWII ending atom bombs going off every day up there. How are we still ok?

wffurr · 5h ago
My preferred design for fusion reactors uses gravitational confinement and are placed 150 million miles away.
doctorwho42 · 1h ago
Don't forget a vacuum or else you will cook and deafen yourself and everyone else
jajko · 2h ago
With enough distance, even largest hypernovae are just tiny sparkles on the background of the sky.
layer8 · 2h ago
We would be much worse off without it.
lazide · 5h ago
Hey, at least we can’t hear the screaming (/s).

Distance/dilution really is the solution eh? Besides, without all those fusion bombs going off our air would be liquid/solid, which is extremely inconvenient.

amelius · 5h ago
Soon coming to a fusion reactor near you.
ChuckMcM · 12h ago
Agreed, and for folks who can still remember some of Jackson's electrodynamics a really interesting visualization of field equations in "real" time.
doctorwho42 · 1h ago
Lol, glad I'm not the only one thinking that way
casenmgreen · 4h ago
Blocks evil Tor users.