NASA research confirms Einstein's theory of relativity

NASA's GP-B gravity probe is designed to test two predictions drawn from Albert Einstein's theory of relativity and completed the mission after 5 years of research.

On May 4, 2011, research results from this ship confirmed that Einstein's two predictions were completely accurate.

Launched in 2004, GP-B uses an ultra-sensitive gyroscope to calculate the hypothetical hypothetical effects of geometries, the deflection of space and time around an object with gravitation, and a pull structural relaxation - the effect of a circular object rotating and pushing space and time as it rotates.

GP-B identifies both of these effects with unprecedented accuracy by pointing to a single star, IM Pegasi , when on a reverse trajectory orbiting the earth. If gravity does not affect time and space, GP-B 's gyroscope will always point in one direction while in orbit. But, just as Einstein predicted, the gyroscopes experienced small, measurable changes in direction in their rotation, while the earth's gravity exerted a pull-up force. these spins.

' Imagine the earth is covered with honey. When the earth turns, the surrounding honey is entangled, the same thing happens with space and time , 'said Francis Everitt, principal investigator at Stanford University . ' GP-B confirmed two of Eistein's profound predictions about the universe, which had a profound effect on astrophysics. Likewise, centuries of technological innovations behind this mission will leave a lasting legacy for the earth and space. '

Space - time under the impact of the earth. (Source: NaSa ).

GP-B is one of NASA's long-winded projects in history, involving many related agencies. It started in the autumn of 1963 with the development of relative gyroscope experiments. Centuries of follow-up studies have introduced breakthrough technologies in controlling disturbance of the environment affecting spacecraft, such as aerodynamic drag, magnetic fields and thermal fluctuations. The gyroscopes and the only clock set in this mission are the most accurate things ever designed and built. GP-B completes data collection activities in December 2010.

' The results of this mission will have a lasting impact on the work of theoretical physicists ,' said Bill Danchi, senior astrophysicist and program scientist at NASA Headquarters in Washington. . 'Any subsequent statements or actions against Einstein's theory of relativity will require more accurate calculations than the remarkable calculations GP-B has made. '

Innovations allowed by GP-B have been used in GPS technology to help aircraft land without assistance. Additional technologies of GP-B are also applied in NASA's Space Discovery Mission, accurately assessing the cosmic background radiation. Those calculations are the foundation of Big-bang theory, bringing the Nobel Prize to NASA physicist John Mather.

The results are published in Physical Review Letters.