Document - "Galileo Galilei" (GG) a small satellite to test the equivalence principle of Galileo, Newton and Einstein

2009

Journal article Open Access

"Galileo Galilei" (GG) a small satellite to test the equivalence principle of Galileo, Newton and Einstein

Nobili Am, Comandi Gl, Doravari S, Bramanti D Kumar R, Maccarrone F, Polacco E, Turyshev Sg, Shao M, Lipa J, Dittus H, Laemmerzhal C, Peters A, Mueller J, Unnikrishnan C S, Roxburgh Iw, Brillet A, Marchal C, Luo J, Van Der Ha J, Milyukov V, Iafolla V, Lucchesi D, Tortora P, De Bernardis P, Palmonari P, Focardi S, Zanello D, Monaco S, Mengali G, Anselmo L, Iorio L, Knezevic Z

Space physics Astronomy and Astrophysics General relativity Experimental gravity Space and Planetary Science

"Galileo Galilei" (GG) is a small satellite designed to fly in low Earth orbit with the goal of testing the Equivalence Principle-which is at the basis of the General Theory of Relativity-to 1 part in 1017. If successful, it would improve current laboratory results by 4 orders of magnitude. A confirmation would strongly constrain theories; proof of violation is believed to lead to a scientific revolution. The experiment design allows it to be carried out at ambient temperature inside a small 1-axis stabilized satellite (250 kg total mass). GG is under investigation at Phase A-2 level by ASI (Agenzia Spaziale Italiana) at Thales Alenia Space in Torino, while a laboratory prototype (known as GGG) is operational at INFN laboratories in Pisa, supported by INFN (Istituto Nazionale di fisica Nucleare) and ASI. A final study report will be published in 2009.

Source: EXPERIMENTAL ASTRONOMY (PRINT), vol. 23 (issue 2), pp. 689-710

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@article{oai:it.cnr:prodotti:44240,
	title = {"Galileo Galilei" (GG) a small satellite to test the equivalence principle of Galileo, Newton and Einstein},
	author = {Nobili Am and Comandi Gl and Doravari S and Bramanti D Kumar R and Maccarrone F and Polacco E and Turyshev Sg and Shao M and Lipa J and Dittus H and Laemmerzhal C and Peters A and Mueller J and Unnikrishnan C S and Roxburgh Iw and Brillet A and Marchal C and Luo J and Van Der Ha J and Milyukov V and Iafolla V and Lucchesi D and Tortora P and De Bernardis P and Palmonari P and Focardi S and Zanello D and Monaco S and Mengali G and Anselmo L and Iorio L and Knezevic Z},
	doi = {10.1007/s10686-008-9128-3},
	year = {2009}
}