Spin transfer torques in MnSi at ultra-low current densities were studied using neutron scattering. The research revealed that spin transfer torques can be observed in the skyrmion lattice phase of MnSi, which is a magnetic structure composed of magnetic vortices. These torques are induced by currents as low as $10^6$ Am$^{-2}$, which is five orders of magnitude smaller than typical current densities used in other studies. The findings suggest that the skyrmion lattice is highly sensitive to spin currents and can be manipulated by electric currents, making it a promising material for spintronics applications. The skyrmion lattice in MnSi is a new form of magnetic order, characterized by topologically stable knots in the spin structure. It exhibits properties similar to the mixed state in type II superconductors. The study showed that when an electric current is applied, the magnetic structure of the skyrmion lattice rotates, which can be measured using neutron scattering. This rotation is caused by the interplay of spin transfer torques, pinning forces, and anisotropy terms. The research also demonstrated that the skyrmion lattice is weakly coupled to the atomic crystal structure, making it suitable for studying spin torque effects. The study identified that the skyrmion lattice can be manipulated by electric currents, which could be used to control individual skyrmions. The results suggest that chiral magnets and systems with nontrivial topological properties are ideal for advancing the understanding of spin transfer torques. The study also discussed the role of demagnetizing fields and the importance of the skyrmion lattice's rigidity in determining the observed effects. The findings highlight the potential of MnSi and similar materials for future spintronic applications, where spin currents can be used to manipulate magnetic structures at the nanoscale. The research provides a deeper understanding of the mechanisms behind spin transfer torques and their potential applications in magnetic devices.Spin transfer torques in MnSi at ultra-low current densities were studied using neutron scattering. The research revealed that spin transfer torques can be observed in the skyrmion lattice phase of MnSi, which is a magnetic structure composed of magnetic vortices. These torques are induced by currents as low as $10^6$ Am$^{-2}$, which is five orders of magnitude smaller than typical current densities used in other studies. The findings suggest that the skyrmion lattice is highly sensitive to spin currents and can be manipulated by electric currents, making it a promising material for spintronics applications. The skyrmion lattice in MnSi is a new form of magnetic order, characterized by topologically stable knots in the spin structure. It exhibits properties similar to the mixed state in type II superconductors. The study showed that when an electric current is applied, the magnetic structure of the skyrmion lattice rotates, which can be measured using neutron scattering. This rotation is caused by the interplay of spin transfer torques, pinning forces, and anisotropy terms. The research also demonstrated that the skyrmion lattice is weakly coupled to the atomic crystal structure, making it suitable for studying spin torque effects. The study identified that the skyrmion lattice can be manipulated by electric currents, which could be used to control individual skyrmions. The results suggest that chiral magnets and systems with nontrivial topological properties are ideal for advancing the understanding of spin transfer torques. The study also discussed the role of demagnetizing fields and the importance of the skyrmion lattice's rigidity in determining the observed effects. The findings highlight the potential of MnSi and similar materials for future spintronic applications, where spin currents can be used to manipulate magnetic structures at the nanoscale. The research provides a deeper understanding of the mechanisms behind spin transfer torques and their potential applications in magnetic devices.