Opinion

Why aren't we all focused on the really earth-shattering news?

March 04, 2005 Edition 1

John Scott

The most amazing things have happened in the past two weeks - or at least been reported - yet daily life just continues as if they hadn't. I refer to occurrences cosmological.

I've always been a sucker for astronomical sensation whose only possible response among laymen can be "Gee whiz!", "Wow!" and "Crikey, I hope not in my lifetime!"

Many years ago I taught myself how to identify most of the more important stars and constellations in the night sky so that I could detect any significant changes. But they all seemed to stick to their usual positions.

Latterly I have been attending UCT summer school courses on cosmology. I like to keep abreast of what is happening elsewhere in the universe, even if the event was 10 billion years ago.

We get to know about it much later because, unlike local gossip, the information can travel to us only as fast as light. But at that speed, the following phenomena have been reported in the past fortnight:

  • An unknown type of space object is "burping" powerful bursts of radio waves from near the centre of our galaxy at regular intervals, suffering from a form of indigestion that scientists do not yet fully understand.

  • A cluster of galaxies, the most distant large object yet discovered, has been detected by x-rays nine billion light years away, near the outer edge of the perceptible universe.

    The x-rays are so faint that the astronomical satellite could pick up only one photon, or particle of light, every 2.5 minutes, having dragged itself through space, like a Comrades runner on his last legs.

  • The greatest cosmic explosion yet monitored occurred on the other side of our galaxy, briefly brighter than the full moon and releasing more energy in one-tenth of a second than the sun emits in 100 000 years.

    The object, a neutron star only 20km in diameter, is in the constellation of Sagittarius, which doesn't surprise me, a Sagittarian, at all. We all have a bit of a problem sustaining our brilliance.

  • It is now calculated that a giant rock the size of three football fields will miss the Earth in 2029 by only 36 350km - one-tenth of the distance between Earth and the moon.

    The good news is that we have 24 years left, in case anything goes wrong. The bad news is that it is due on Friday the 13th, in April.

  • And finally, our outermost planet, Pluto, discovered only nine years before I was born, may not be a planet after all. It may just be a spherical asteroid. Generations of schoolchildren have been wildly misled.

    All this is mind-concentrating stuff, yet the headlines are still about minor, mundane matters such as national budgets, racist judges, Schabir Shaik's eccentric bookkeeping, sports quotas and Zimbabwe's allegedly free and fair election.

    I forgot to mention that the Andromeda galaxy is moving towards us and is expected to swallow us all up within a few million years. So long as the prospect doesn't spoil your weekend.

    E-mail: johnvscott@mweb.co.za

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