Exo-planets, stars and galaxies : observational advances

Some recent observation results

Innovative methods for high-dynamic, high-resolution astronomical imaging : temporal hypertelescopes and light-beam frequency conversion

High angular resolution and scientific advances

Prospects for high angular resolution imaging using future interferometers to study amplitude and intensity

Trials underway for " Hypertélescope Ubaye " (continued)

Topographic measurements and application to " the Ubaye hypertelescope "

Topographic measurements and application to " the Ubaye hypertelescope "

Concept for a terrestrial hyper telescope from 1000 to 1200 m (continued)

The Great Black Hole at the center of our galaxy : a spectacular macrolensule

Lost planets as gravitational lenses : observability of diffractive focusing

Innovative techniques for calibrating Cepheid distance scales

Searching for life beyond the solar system

Blurring the boundaries between planets and brown dwarfs : wandering planets