The Brightest parts is now at PA 240°. ( PA 0° = North PA 90° = East ). Not unlike the situation on 26.February. picture 3.
I block the comets core and used exponential stretching to improve the contrast near the core.

Spaceweather say : Some astronomers believe ---- cryovulcanism ---
A friend of mine told me that some astronomers had found DNA molecules on a comet.

Well, I think it is better to trust astronomers which can provide evidences for their claims.
We know that comets form from light icy dust grains in The Oort Cloud and have typical sizes between 1 km to less then 100 km. All images from space probes show that comets has a fractal geometry as we should expect from their formation, and have no solid crusts. To form a gravitationally rounded objects in our solar system, we need stuff with at least mean diameter of ca. 500 km ( 12P is only 34 km ) , then a crust can be formed and with an internal heat source, cryovulcanism.

And just for repetition: No spacecrafts have ever imaged comets with volcanoes.
According to NASA scientists : Cryo or other volcanoes occur on Jupiters moon Io and the Saturn moon Enceladus which both have internal heat sources.

NASA’s Rosaly Lopes and the U.S. Geological Survey’s Astrogeology Science Center’s Randy Kirk explain the phenomenon of cryovolcanism.

Spirals are a common phenomenon on comets as previous mention (12.March) and indicates a FEW big/major open vents ( see BAA light-curve ), NOT peppered with geysers as "Spaceweather's some astronomers" claims. That would only make the comets head more diffuse.

Sun distance now (au): 1,07 Perihel : 21.April 2024 Sun distance (au): 0,78

Time: 20:10UT 2024-03-12 Exp.170 x 10sec
Tel: 0.254m f/7.3 ST-10XME CCD 2x2bin 1.5"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.