Gravity Probe A
id:
gravity-probe-a-266-16060642
title:
Gravity Probe A
text:
Gravity Probe A (GP-A) was a space-based experiment to test the equivalence principle, a feature of Einstein's theory of relativity. It was performed jointly by the Smithsonian Astrophysical Observatory and the National Aeronautics and Space Administration. The experiment sent a hydrogen maser—a highly accurate frequency standard—into space to measure with high precision the rate at which time passes in a weaker gravitational field. Masses cause distortions in spacetime, which leads to the effec
brand slug:
wiki
category slug:
encyclopedia
description:
Space-based experiment to test the theory of general relativity
original url:
https://en.wikipedia.org/wiki/Gravity_Probe_A
date created:
date modified:
2023-11-24T02:33:04Z
main entity:
{"identifier":"Q5598059","url":"https://www.wikidata.org/entity/Q5598059"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/a/af/Benjamin_Crowell%2C_General_Relativity_%282009%29_p17_GPA.gif","width":1282,"height":959}
fields total:
13
integrity:
15