Astronomy Picture of the Day: Galaxies Away

This stunning group of galaxies is far, far away, about 450 million light-years from planet Earth and cataloged as galaxy cluster Abell S0740.

Astronomy Picture of the Day: Horsehead: A Wider View

Combined image data from the massive, ground-based VISTA telescope and the Hubble Space Telescope was used to create this wide perspective of the interstellar landscape surrounding the famous Horsehead Nebula

Welcome to Winter Sky

Welcome to Winter Sky

سحابی سر اسب

سحابی سر اسب در صورت فلکی جبار