Google Earth Pro - Google Earth Pro allows you fly anywhere around the earth to view satellite imagery, maps, 3D building, and terrain, from galaxies in outer space to the canyons of the ocean.

Space Engine - Space Engine is a realistic virtual Universe you can explore on your computer.

SAS.Planet - SASGIS - Качаем карты и спутниковые снимки высокого разрешения из различных источников (google, яндекс.карт, kosmosnimki.ru, digitalglobe).

Celestia - Real-time 3D visualization of space

Leaflet - Leaflet is a modern, lightweight open-source JavaScript library for mobile-friendly interactive maps.

Stellarium - Stellarium is a free open source planetarium for your computer.