They two Voyagers were launched in 1977 to study the outer planets
of the Solar System: Jupiter, Saturn, Uranus and Neptune. A blog can hardly do justice to the
quantity and quality of the information beamed back to us across the void. The
turbulent atmosphere of Jupiter with its storm-system known as the Great Red Spot,
the rings of Saturn and the shadows on them caused by its magnetic field, Uranus
(which largely kept its secrets from Voyager) and Neptune the
ethereal blue planet that is the sentinel of the Solar System: all these and
many of their diverse and fascinating moons have been disclosed as never before.
The two Voyagers are receding from us (in different directions) by several thousand km/hour. Yet their 1970s technology, so clunky by
current standards, is still working and is capable of transmitting information
across billions of miles, and for as long as they can continue to be powered. It’s an eerie thought that these humanly-made
objects are now crossing the threshold between the sun’s influence, passing out
of the environment that is earth’s home, and entering deep space. This is as
far as anything made by humankind has ever travelled.
Why did I find all this powerfully moving?
For two reasons. The
first is the tribute the Voyagers’ journeys are still paying to what human
beings are capable of. But this isn’t
simply the technology that launched them on this odyssey. The spacecraft are carrying discs that are a
greeting from Planet Earth to any ET who may chance to come across them. They contain a record of what the world was
like in the 1970s: landscapes, townscapes, human language, beliefs, buildings,
writings and culture. Among this
testimony to homo sapiens sent into
space was the music of Johann Sebastian Bach, perhaps because there would be
some consensus (which I’d endorse) that he was the greatest composer of the
western world.
Of course the chance that any extra-terrestial will ever see pictures of children across the world and listen to their greetings is practically
zero. But the real point was not to inform ET. It was to inform us, and by an act of the imagination, underline the infinite preciousness
of planet earth and the miracle of life that has evolved on its surface. To
think of Bach’s 48 Preludes and Fugues hurtling
through inter-stellar space for aeons to come
should make us realise how marvellous a thing it is that we are here at all, so
privileged, so gifted and yet so precariously placed in the face of the threats
that are posed not by outside forces but from our very selves and our capacity for
self-destruction. We hear the echoes of
our own life from a far-off place, and that makes us hear ourselves in new ways.
There is a real agenda for theology here, because the
Voyager journeys not only put questions about the cosmos and its meaning but
also put the psalmist’s question (apologies for the non-inclusive language): ‘what
is man that you are mindful of him, the son of man that you visit him?’ That
question of Psalm 8 is asked because the psalmist has looked up into the sky
and been awed by its tracts unknown. If the
Voyager programme has helped instil a greater sense of awe so that we begin to know
our place in the universe, it will have been worth it. I wish I could believe that the past 35 years
have seen the human family take that question seriously, become more aware,
more responsible, wiser. But we must not
lose heart.
My second reason for being touched was more
personal. The Voyagers were
launched in 1977. That was also the year that our first child was born and launched on
the adventure of being alive. She too has been travelling for all that time. Like them, she is an explorer. She is bound to be because she is a human
being, and it’s the vocation and destiny of every human being to discover
worlds undreamed of and try to make sense of life’s mystery.
This is where cosmology and religion belong together. It's one of those places where faith seeks understanding to the enrichment and delight of
the human mind and heart.