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Mad for Mars: Stargazers Flock
for a View
The Red Planet Gets Closer to Earth Than Ever
-- a Mere 34,646,418 Miles Away
By David Montgomery
Washington Post Staff Writer
Wednesday, August 27, 2003; Page C01
You may already know that 41 minutes before sunrise this morning, Mars
drifted closer to Earth than it ever has in human history.
A mere 34,646,418 miles separated the planets. The last flyby of this
proximity occurred nearly 60,000 years ago, when perhaps a dreamy
Neanderthal paused in the thankless grind of natural selection to behold
the heavens.
The 21st-century response has been a publicity bonanza for the fourth
planet from the sun. Around 9:30 or 10 p.m. is when you hear people talk
about checking the southeastern sky for something wild. Mars has been in
the Earth's neighborhood for weeks and will stay for weeks more. Parents
are keeping their children up past bedtime to see it. Hordes are
descending on their local observatories or lining up at backyard
telescopes. The University of Maryland Observatory drew 300 people
Thursday and an additional 600 Saturday. Kids went home with
glow-in-the-dark flying disks stamped "Mars 2003." News
organizations are treating the great Perihelic Opposition of Mars as right
up there with the Big Bang, the moon landing and the dawning of the Age of
Aquarius. Tabloids are running cover shots of the Red Planet the size of a
human head.
It's enough to make you rush outside and gaze expectantly skyward and,
Yes! There it is! . . . A very bright star. Or is it a distant jet? No,
it's a sparkling amber pinprick of a Christmas twinkle in the sky.
Is this what all the fuss is about? You're yearning to see the Red Planet
rise like a mandarin orange moon or a bloodshot second sun. Maybe a
telescope will help.
On Thursday at the University of Maryland Observatory, people waited more
than 30 minutes in the dark for a turn. They climbed a stepladder to reach
the eyepiece, spent a few moments absorbing the spectacle, then stepped
down:
"It was maybe a little underwhelming," said Nicole Taylor, a
graduate student at Maryland.
"I thought it would be a little more red than it is," said Art
Driedger, a chemist from Silver Spring who brought his four children.
"I expected to see details of the planet surface," said John
Grunwell, a librarian from Hyattsville.
Through a high-quality observatory telescope, Mars resembles . . . a
glowing disk about the size of a pea. There's the faintest blush of
yellow-orange, but many people just see white. The polar ice cap looks
like a dab of frosting. The varying surface soils look like dark smudges
in the middle.
Caught up in the Martian romance of it all, shall you compare this vision
to a shimmering pearl of textured iridescence? Or does it remind you of a
bathroom light fixture with shadowy silhouettes of dead flies in the white
globe?
Would it be rude to ask of this particular celestial phenomenon: So what?
There is an answer to that question, but not the one you expect.
It turns out the closest in human history is not that close. In fact, it's
not much closer than Mars has come several times in recent memory. Mars
today is only about 5 percent closer than it came in 1988. Most people
looking through a telescope wouldn't be able to tell the difference. In
1971 and 1924, it came even closer than in 1988. Every 15 to 17 years the
elliptical orbits of the two planets bring them quite close -- the fancy
name is perihelic opposition; today's is just more so -- and every two
years the planets can come pretty close.
"Every 15 years Mars looks approximately this bright," said
Steven Dick, an astronomer at the U.S. Naval Observatory.
"Technically, it's closer, but practically -- ehhhh," said
Elizabeth Warner, director of the University of Maryland Observatory.
"The average person wouldn't notice a difference between two years
ago and today. Some people think they're never going to see Mars again in
their lifetime. That's not true."
The closest in human history doesn't make much difference to scientists,
either.
"It doesn't change the kind of science we do, and that difference in
distance doesn't give us a huge advantage over previous oppositions,"
says Ray Villard, spokesman for the Space Telescope Science Institute at
Johns Hopkins University, which runs the science program for the Hubble
Space Telescope.
The public has been spoiled by excellent views of the Red Planet,
pockmarks and all, from the Hubble and NASA's unmanned missions to Mars.
Aware of that competition, astronomers are trying to lower public
expectations for the closest-ever experience even as they attempt to seize
this teachable moment.
Thursday night at the observatory, Warner kept repeating to the line of
people, "It's not going to look like those Hubble photographs. . . .
You'll see a little disk in here. That is Mars."
She thinks she knows how Mars mania got started: "The media doesn't
understand something, so they latch on to it."
But she wasn't complaining about the all-ages stampede to the observatory.
"These people have never seen it," she said, waving at the
crowd. Sure, they could come back during another decent Martian opposition
and see pretty much the same thing, but they won't. It takes mania to get
people interested these days.
And is that such a bad thing?
A few years ago, Mary Chapin Carpenter wrote a pretty song about a comet,
"Halley Came to Jackson":
As its tail stretched out like a stardust streak
The papers wrote about it every day for a week
They wondered where it's going and where it's been
When Halley came to Jackson in 1910
Halley and Mars are like modern art. Hand people a piece of paper with
some spilled paint on it and they'll say, "My child could do
that." Tell them it's a masterpiece by Jackson Pollock and they'll
look harder and with wonder.
Halley is just a luminous smudge in the sky until everybody marvels at the
smudge's fabulous encore every 76 years. Tell people that the amber
twinkle is Mars closer than it has ever been in human history, and the
twinkle suddenly pulses with significance.
The planet-gazers at the Maryland Observatory said the experience was
worth coming out for, even those who confessed that the visuals were
underwhelming. Taylor and Ben Irwin, another graduate student, said they
appreciated sharing a cosmic experience with other people. Irwin said what
he remembers about Halley's Comet in 1986 is his parents waking him up to
see it -- not what the comet actually looked like.
Grunwell, the librarian who had expected a more detailed image, said,
"I like the sense of knowing I'm on a planet, in a solar system. It
gives me some context about what we are and where we are."
"I just got goose bumps," said Pat Ramsay, a chief financial
officer from Bethesda. The shimmering pearl was better than the detailed
Hubble photos because "this is like looking at it with our own two
eyes. . . . I almost feel like I'm there, that I was transported
there."
So, for now, people are looking harder at shimmers in the sky. After the
blinding light of hype clears, they're left with something less brilliant
than their expectations, perhaps, but something still amazing because they
have developed a subtler appreciation.
What if subtler appreciation were transferable to everyday miracles? The
monthly sky show of the full moon is more spectacular than Mars on its
best day in human history.
But before long, there will be another celestial phenomenon to catch
everybody's attention. There always is. Next June it will be the transit
of Venus. That's when Venus passes like a speck in front of the sun. It
hasn't happened since 1882. The public was thrilled. John Philip Sousa
wrote the "Transit of Venus March."
Mars mania has yet to fade, and already astronomers are preparing for
Venus vibrations.
"It's going to be a big deal," said Dick, of the Naval
Observatory.
Even if it's subtle.
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