These satellite images of Rome and its surroundings mark significant milestones in the Earth observation missions of ERS-1 and ERS-2 satellites, spanning two decades. The sequence begins with an image from ERS-1's first acquisition in 1991, continues with a 2001 image from ERS-2 celebrating 10 years of ERS missions, and concludes with the final ERS-2 orbit in 2011, marking 20 years of service.

• Image 1: Satellite: ERS-1, Instrument: Synthetic Aperture Radar (SAR) Precision Image, Product: MER_RR_1P, Acquisition Date: 28 Dec 1991, Orbit Number: 2355
• Image 2: Satellite: ERS-2, Instrument: Synthetic Aperture Radar (SAR) Precision Image, Product: SAR_IMP_1P, Acquisition Date: 08 Jul 2001, Orbit Number: 32498
• Image 3: Satellite: ERS-2, Instrument: Synthetic Aperture Radar (SAR) Precision Image, Product: SAR_IMP_1P, Acquisition Date: 04 July 2011, Orbit Number: 84719