'In the 1780s William Herschel determined its axial inclination & found it had ice caps'
Mars
NOT SO RECENT SCIENCE: In the 1780s William Herschel determined its axial inclination & found it had ice caps
In the 1780s William Herschel determined its axial inclination & found it had ice caps
In the 1780s William Herschel determined its axial inclination & found it had ice caps
NOT SO RECENT SCIENCE
Mars
NOT SO RECENT SCIENCE