"Alberto" . . . . "Exoplanet"@en . . "High precision"@en . "Dark matter"@en . "Astrophysics"@en . "Alberto Riva" . "29f7826dc8e484d194735c38ec83bb58" . "Riva" . "Astronomy"@en . "Differential"@en . "Astrometry"@en . . "Space mission"@en . "Visible"@en .