'In 1672 Christiaan Huygens sketched its southern ice cap'
Mars
SCIENCE HISTORY: In 1672 Christiaan Huygens sketched its southern ice cap
In 1672 Christiaan Huygens sketched its southern ice cap
In 1672 Christiaan Huygens sketched its southern ice cap
SCIENCE HISTORY
Mars
SCIENCE HISTORY