McLuhan frequently attributed to satellites the translation of the physical environment of the earth into an art-form:
The McLuhan DEW-LINE, 1:5, November 1968
From the first moment of the satellite [in 1957], the earth ceased to be the human “environment”. Satellites automatically enclose the old Darwinian “Nature” environment by putting the planet inside a man-made environment. They are just as much an extension of the planet as is clothing an extension of the skin.
But he himself had seen this transformation before the satellite:
Culture Without Literacy, 19531
But the fact that with with modern technology the entire material of the globe as well as the thoughts and feelings of its human inhabitants have become the matter of art and of man’s factive intelligence means that there is no more nature. At least there is no more external nature. Everything from politics to bottle-feeding (…) is subject to the manipulation of conscious artistic control.
Notes on the Media as Art Forms, 19542
technology has abolished ‘nature’ in the old sense and brought the globe within the scope of art…
Nihilism Exposed, 19553
And now in the twentieth century when nature has been abolished by art and engineering, when government has become entertainment and entertainment has become the art of government, now the gnostic and neo-Platonist and Buddhist can gloat: “I told you so! This gimcrack mechanism is all that there ever was in the illusion of human existence.”