This is the type of basalt which is found on Earth’s moon. The dark areas visible on the moon, the lunar maria, are plains of basalt lava flows. We know this because the roks were sampled by the manned American Apollo program, the robotic Russian Luna program and are represented among the lunar meteorites.
Basalt from the moon is slightly different to most basalt on Earth. Lunar basalt contains more iron and less water than Earth basalt and often shows evidence of ‘shock metamorphism’ caused by meteorite impacts.
Most of the Moon’s basalts erupted 3 - 3.5 billion years ago. At about the same time, the oldest rocks in Europe were formed. These are metamorphic rocks from the Isle of Lewis, Scotland, and are 3.3 billion years old.
Data sent back from the surface of Mars suggest that Basalt is also common on the surface of Mars.