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The Ring we share
Copyright © 1991, Vance Haemmerle
Just out of Graduate School with a Master's Degree in Astronomy, I was deep
into the most exciting events of my life, working behind the scenes as an
associate to the world's top planetary scientists on the last new planetary
reconnaissance of our lifetime.
After a torturous twelve-year flight, Voyager 2 reached Neptune, its final
encounter before it broke the bonds of our Sun and began its never-ending
interstellar journey. A voyager in the true sense of the word, this small
robot at the frontiers of our solar system, billions of miles from home was
our link to this mysterious planet. The views of its mechanical eyes
illuminated the television screens of our small cubicles and offices on the
third floor of building 264 at the Jet Propulsion Laboratory in Pasadena,
California.
It was the early afternoon of August 25th, 1989, just hours after Voyager's
closest approach to Neptune. Awake for almost two days straight, dreary
eyed yet full of adrenaline and not wanting to miss a single image, I
struggled to keep alert as we all worked feverishly to keep up with the
torrent of information.
After a long stint at looking for new satellites in ring mosaic images,
I took a break to visit Sarah Crane, a summer undergraduate intern from
Georgia, in the next cubicle. She was a young woman of fair hair and
freckled face and in the days approaching the encounter we had become
fast friends who enjoyed each other's company. In the dark we looked
at the flickering image of two thin rings set against the planet received
from the spacecraft a few hours before.
Sarah was measuring the position of one of Neptune's newly discovered
satellites to help track its orbit. Simply titled ``1989N4'' because it
was the fourth one discovered, it was at the very top of the frame and
she was busy cursoring it up. As I was watching her work, I thought I
spied an ethereal ring, set inside of and parallel to the others. I
asked her to adjust the contrast of the picture to bring out what I
thought I had seen. After a few tries there it was, and she saw it
too -- barely visible but still in all its glory. Jumping from my seat
I exclaimed ``There's a third ring!'' Two members of the Voyager Imaging
Team rushed in to see and we all hurried to analyze the image and get
the news out to the world.
As the ring reappeared in the ensuing hours, the handful of people who
knew the truth joked about how it was ``Vance's ring.'' Yet in the whole
scheme of things, my being there was not that important, for soon after,
the diffuse ring displayed its true brilliance when it was viewed from
behind, with the sun's light filtering through it. My discovery only allowed
humanity to know of this ring a day sooner.
Then suddenly, fate stole Sarah away from me the very next day. When
I heard she was leaving I rushed to meet her at the elevator. We
exchanged glances and shared the unspoken knowledge that if only time
had permitted, we would have grown much closer. In a spontaneous
gesture she hugged me, and through this solitary embrace we held each
other and yearned for what could have been.
Needless to say, astronomers, in their concise way, have since labeled
our ring ``N42'' indicating its central radius of 42,000 kilometers from
Neptune's center. Such a mundane name cannot convey its splendor and
beauty.
When I see images of that magnificent blue planet set among the stars,
circumscribed by rings of ice, I often think of Sarah and of the ring
we share, not on our fingers but in the heavens.
Postscript: After the mission, the IAU (International Astronomical Union) gave the ring
the name ``Galle,'' after a co-discoverer of Neptune.