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Written by Kelly Herbst, Astronomy Curator for the Virginia Living Museum. Updated every other Wednesday.

Wednesday, May 8, 2013

So...why are you here?

I get asked that question a lot.

Well, okay, not really.  Most people are not so bold as to ask that question directly.  They tend to come at the idea with comments like "Oh...I had no idea there was a planetarium at this museum."  Or perhaps, "Wow, when did you guys build this?"  Or the ever-popular "How long has this been here?"

But the looks on their faces and the tone of their voices say "What's a space science thing doing at an animal museum?"

We do have a lot of animals.  They are awesome and amazing, and I completely understand why people love them, because I do too!  (personal favorites: the bobcat and the otters)  But the Virginia Living Museum is about more than just adorable animals.  We are a nature and science center.  We aim to showcase the natural wonders of Virginia - all of them.  Plants, animals, mountains, trees...and yes, even the sky.

More than this, we are hoping to inspire in our guests a passion for the world that surrounds them.  It's a world worth saving.  Not only the playful otters and the majestic bobcat, but also the brilliant stars of night, the delicate flowers, and so very much more.  And even more than this...none of what makes Virginia the incredible place it is exists separate from the planet on which we find ourselves.  And our wondrous Earth cannot exist without the solar system of which it is a part.  And that solar system resides in the Milky Way galaxy...an island universe within a vast cosmos...all of which makes up "our environment."  To understand our own little world, we must understand the universe.

We as humans like to compartmentalize things.  We categorize, sort, subdivide and organize.  This helps us to understand where we are in the universe, and to deal with the mundane aspects of daily life.  But we forget at our peril that we are all citizens of the cosmos.  Ask anyone who has had the great privilege to see the Earth from space.  They understand.

Our wonderful planet as seen from Apollo 17.  Courtesy NASA.

I really believe that if the political leaders of the world could see their planet from a distance of 100,000 miles their outlook could be fundamentally changed. That all-important border would be invisible, that noisy argument silenced. The tiny globe would continue to turn, serenely ignoring its subdivisions, presenting a unified façade that would cry out for unified understanding, for homogeneous treatment. The earth must become as it appears: blue and white, not capitalist or Communist; blue and white, not rich or poor; blue and white, not envious or envied.
— Michael Collins, Gemini 10 & Apollo 11 astronaut

That's why we're here.  To transport you, even for just 30 minutes or so, into the cosmos and show you just how precious and wonderful is your environment.

Until next time,
Carpe noctem!
Kelly

Wednesday, April 24, 2013

When One Giant Sets...Another Rises...

Okay, perhaps not as eloquent or well known as the similar saying about doors...but more relevant to the sky right about now.

I do hope you've had the chance to look at Jupiter during this Winter/Spring season.  For some time now, Jupiter has been the dazzling bright white star-like object in the western sky, easily visible as the Sun sets and lingering for a while afterwards.  Well...the lingering is almost over.  Jupiter is now setting perhaps two hours after the Sun, and that time will grow progressively shorter as the days go by.  By the end of next month, Jupiter will be gone from our skies, disappearing into the glare of the Sun.  Long before that happens, it will become very difficult to catch telescopically, being low to the horizon just after sunset.  The season for Jupiter is ending, my friends, and if you haven't yet spent a pleasant evening outdoors, marveling at the wonders of the solar system's largest planet, I urge you to do so without delay.  It would be a shame to miss it.

Jupiter as seen through a small telescope.  The small "stars" seen around the planet are its four largest moons.  Image by Donald Waid. 

Yet even as Jupiter descends into the evening twilight, Saturn also rises.  Climbing up from the eastern horizon around sunset and visible nearly all night long, Saturn is becoming a better and better target for that telescope lingering in your garage or closet.  As Jupiter disappears below the western horizon, Saturn climbs higher into the south, gently gracing the sky with its golden glow.  Saturn appears like a golden-yellow star in the night sky - one that doesn't appear to twinkle.  Planets rarely twinkle, except under the most humid of conditions (think August!), while stars are so distant from us the moving atmosphere of Earth causes them to twinkle even under the best of seeing conditions.  Look to the southeast at 10pm and you'll be able to spot beautiful Saturn quite easily.  It won't be as bright as Jupiter, but if you look tonight, the Moon will be next door to the right, easily guiding your eye to the planet.  And don't worry if you miss it - Saturn will be with us all summer long.  We expect to see quite a lot of it at our summer star parties here at the Virginia Living Museum - so come on out on the second Saturday of the month and join us.  Trust me, there are few sights in the world more amazing than Saturn's rings in a telescope.  Don't miss it.

Saturn seen up close and personal by the Cassini spacecraft.  Don't worry, you'll be able to see the rings without having to travel a billion miles.  Even a quality pair of binoculars will show you the rings of Saturn.  Image courtesy NASA.

So that's my advice to you - go outside and see the planets.  Take a deep breath.  Relax.  And drink in the wonders of the universe around you.

Until next time,
Carpe noctem!
Kelly