Back to today’s briefing

Story perspectives

NASA Scientist Proposes Screened Fifth Force, Calls for Dedicated Missions

4/26/2026

48 10 Full Breakdown

Summary

Story summary

Slava Turyshev of NASA's JPL proposes a screened fifth force to close the cosmic-local physics gap.
The chameleon model makes the force strong in low-density space and weak in dense matter.
Vainshtein screening suppresses the force inside a radius of about 400 light-years, leaving only an outer layer near the Sun below detection limits.
Turyshev says dedicated missions are needed because Euclid and DESI cannot test the effect locally.

1 of 1

Story summary

Slava Turyshev of NASA's JPL proposes a screened fifth force to close the cosmic-local physics gap.
The chameleon model makes the force strong in low-density space and weak in dense matter.
Vainshtein screening suppresses the force inside a radius of about 400 light-years, leaving only an outer layer near the Sun below detection limits.
Turyshev says dedicated missions are needed because Euclid and DESI cannot test the effect locally.