Sunset

Perspective on a different world - mountains on Io at sunset, from Galileo

Chaotic

Tumbling helplessly - Hyperion, from Cassini

Fill

Possible past glacial activity - filled-in craters, from Mars Express

Beyond Imagination

There are some objects out there that I would not have imagined - Hoag's Object, from Hubble

Perspective

Something we don't have - Titan and Dione, from Cassini

Fear

Fear, in color - Phobos, from Mars Express

So Much

It always amazes me how much can be learned from an image - Saturn's thin rings and two of its moons, from Cassini

Dust Devils

Previously only seen from above - dust devils in Gusev Crater, from Spirit

Blue

For the same reason as the sky is blue - reflection nebulae and stars, the Pleiades, from Hubble

Not so fiery

In myth, his breath formed the fires of Mt. Etna, but his is an icy world - Enceladus, from Cassini

Mundane

I think that's what is so appealing about this image - roving on Mars, from Spirit

Unleashed

It is said that this place gets hit by more lightning strikes each year than anywhere else in the United States - nature's wrath at Kitt Peak National Observatory, by Adam Block

A Dark Place

It is difficult to imagine such a dark place, able to obscure the brightness from around it. But those dark places exist - Barnard 68, from the VLT

Complexity

Rich textures and a long history of activity - evidence of flooding on Mars, from Mars Express

Destruction

Think these galaxies know of their impending doom? - the "Mice", from Hubble

Bruised

Some call this the "Black Eye" galaxy - M64, from Hubble

Moon over Seattle

Lots of science hidden in this one - Moon rising over Seattle

Broken Heart

This dark nebula looks like a heart on its side - reflection nebula NGC 1999, from Hubble

Glacial

Ice, dust, two kilometer tall cliffs - north polar region of Mars, from Mars Express

Disruption

Tidal forces will destroy this galaxy as it falls towards the center of the Fornax cluster - NGC 1427A, from Hubble

Cold Beach

Dunes meet the polar cap - Mars, from Mars Global Surveyor

Eclipsed

The Moon's shadow upon the Earth - solar eclipse, by Don Pettit from the ISS (2002)

O Canada

Look, before it erodes away - Manicouagan impact crater in Canada, from the Space Shuttle Columbia

Sunlight

Just like the rainbow in the sky - the spectrum of the Sun, from Nigel Sharp at NOAO

The Sky is Falling

I must see this in person someday - aurora over Alaska

Trailing

A familiar sight through an unfamiliar perspective - trailing stars of Orion, by David Malin

No Words Necessary

Starlight

Imagine a world illuminated only by starlight - Cerro Tololo, by Roger Smith

Clouds

Clouds upon clouds, illuminated by a low Sun - Saturn, from Cassini

Deep

Released about one year ago, this is the deepest optical view of the universe - the Ultra Deep Field, from Hubble

Mystery Moon

Nobody is certain how a tiny moon ends up looking like this - Miranda, from Voyager 2

True colors

Darkness and light...all the shades in between - Rho Ophiuchus

Seventy-five years later

And this is still our best view - Pluto, from Hubble

Canyonlands

Looks like the Southwest, but it isn't - the center of Valles Marineris, from Mars Express

Happy Anniversary

In honor of our day, a new image showing great beauty, dynamicism and unexpected discoveries - Saturn and its aurora, from Hubble

Nominee

In honor of Greg's Nebula nomination, the most beautiful nebula I know - the Horsehead nebula

Valentine

A sweet symbol of love - NGC 7129, from Spitzer

The Hat

The classic edge-on spiral - the Sombrero galaxy, from Hubble

Spiraling

Seen side-by-side, one will destroy the other - Neptune and its largest moon (and future ring) Triton, from Voyager 2

Must go

Feeding my obsession to go there - aurora over Iceland

Almost gone

A larger impact would have destroyed this amazing moon - Mimas, from Cassini

Hidden

Bright light, dark clouds, serenity - dust clouds in IC 2944, from Hubble

The Blues

I don't know that I will ever get enough of these images - Saturn and Mimas in "true" color, from Cassini

Obsession

I've always wanted to visit cooler climes, but now I'm obsessed - volcano and aurora in Iceland

Sparklies

Like sapphires and topaz on black velvet - M103, from KPNO

Today

Ultraviolet Sun, as it looks now - latest images from SOHO

Home

Looking homeward, from Mars - Earth and its moon, from Mars Global Surveyor

Echoes of light

A burst of light from a star reveals its environment - V838 Mon, from Hubble

Soaring

It just doesn't get much more lovely than this - the Eagle Nebula, from Kitt Peak National Observatory (NOAO)

The one that started it all

I saw this image as a child and couldn't believe the universe held such wonders - the Vela supernova remnant, by David Malin