Article : Did a supernova trigger the late Devonian extinction?

Just been reading the above article on

Did a supernova trigger the late Devonian extinction?

https://physicsworld.com/a/did-a-supernova-trigger-the-late-devonian-extinction/

Asf we think there was life on Mars a long time ago,  would the rocks brought back from Mars by the newly launched Perseverance rover be tested for these radioactive isotopes too, to figure out if any radiation also reached the surface of Mars.  So namely this seems to be:

• Samarium-146
• Uranium-235
• Plutonium-244

So some digging as to what protects us from Solar Flares

What Protects the Earth From Harmful Solar Flares?

Updated March 10, 2018
By Tammie Painter

https://sciencing.com/protects-earth-harmful-solar-flares-2515.html

Would this also protect us from other sources of radiation, I am guessing anything from outside the solar system would be called something like

Exosolar radiation.  (based on he idea we use the term exoplanet to describe planets around other stars)

So if this Supernova radiation reached Mars without the same level of protection could any life on Mars have suffered a more catastrophic damage and would evidence of the above isotopes provide evidence of this, providing  the probe finds evidence of life either exists  or once existed on Mars.

Thanks

Paul