The European Space Agency (ESA) fires up three of the instruments on the Hera spacecraft and takes images of the smaller ...
"If the moon and a planet are near Castor and Pollux you have an impressive show." From our earthly perspective, the moon and Mars will appear closest to each other at around 8 p.
Mars and its lesser-known city-sized moon, Deimos, has been imaged by a spacecraft on its way to study an asteroid.
The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...