Select an exploration mode, a planet, a moon or a simulation
Solar system
Explore space, navigate and visualize the different stars of the solar system by yourself, in real time.
ExploreConstellations
Observe the constellations in real time from a chosen position.
ExploreSolar eclipse
View the solar eclipse of August 26, 2026.
SeeÉclipse lunaire
View the lunar eclipse of March 3, 2026
SeeMercury
ObservationThe planet closest to the Sun. Small and rocky, it experiences extreme temperature differences between day and night.
Venus
ObservationAlmost twin to Earth in size, but covered with toxic clouds. It is the hottest planet in the solar system.
Earth
ObservationThe only planet known to be home to life. Largely covered with water and protected by a favorable atmosphere.
Mars
ObservationThe red planet, famous for its iron-rich soil. It is home to the largest mountains and canyons in the solar system.
Jupiter
ObservationThe largest planet in the solar system. A gaseous giant with a tormented atmosphere, it has a famous storm: the Great Red Spot.
Saturn
ObservationKnown for her beautiful rings made of ice and rock. She is a gas giant like Jupiter.
Uranus
ObservationIcy giant with a blue-green hue due to methane in its atmosphere. It is tilted to the side, which makes it unique.
Neptune
ObservationThe planet furthest from the Sun. Very windy and cold, it has a beautiful blue color and intense storms.
Moon
The Moon is the only natural satellite of Earth. Visible in the night sky, it influences the tides
SeeSizes comparator
Observe and compare the real sizes of the planets and the sun.
See