Mirage gravitationnel : un télescope géant, naturel et gratuit
{"Image DocumentName": "Mirage gravitationnel : un t\u00e9lescope g\u00e9ant, naturel et gratuit", "Image ImageDescription": "HST. HST. Beaucoup d\u2019ann\u00e9es lumi\u00e8re.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}