Another awesome upload by Gordan Ugarkovic, here’s a color-composite image from Cassini data taken in December 2009 showing a jetting Enceladus lit by “Saturnshine” – reflected diffused sunlight from an off-frame Saturn – and given a Saturn-y coloration at the same time! Icy Enceladus is typically a bright white color, with some grey and…
Tag: science
Multi Moons
I can’t even begin to say how many moons Cassini captured in this raw image, taken yesterday October 6! I see Epimetheus and Janus and Pan and Daphnis (I think) and…Atlas?….and…and……..is that Tethys at the bottom? I’m not sure, but what I do know is that this is a whole lot of moons…
Solving a Martian Mystery
“The Red Planet bleeds. Not blood, but its atmosphere, slowly trickling away to space. The culprit is our sun, which is using its own breath, the solar wind, and its radiation to rob Mars of its air. The crime may have condemned the planet’s surface, once apparently promising for life, to a cold and sterile…
Small Worlds, Big Surprises
Far from being just a jagged hunk of rock tumbling through space, the asteroid Lutetia – visited by the European Space Agency’s Rosetta spacecraft this past July – has been found to be coated with a 2000-foot-thick layer of dust and rocks, visibly softening the edges of craters and ridges on its surface. This layer…
Carnival of Space 172
Wow. It’s been quite an exciting week in astronomy, with the passing of NASA’s much-needed budget proposal, the preparation of the shuttle Discovery for its final flight, China’s successful launch of its second lunar mission just this past Friday… and, of course, the monumental announcement of the discovery of a potentially Earthlike planet…
The Light Fantastic
Holy ice spray! This image, released today, shows a dramatic view of Enceladus with geysers in full force, obtained by Cassini while the sun (behind Enceladus) backlit the geysers and reflected light off Saturn illuminated the face of the moon. There couldn’t be a better lighting setup for a scenario like this! In a word:…
Mercury’s Special Scarps
The 300-mile-long long channel cutting across craters on Mercury in this image from MESSENGER was first identified in October of 2008, giving scientists clues to a geologic history found nowhere else in our solar system. Deep cracks like this, found all over the planet, are thought to be caused by the contraction of Mercury as…
Lunar Hues
Look up at the moon on any clear night and you’ll see a cratered world shining down on you, in some phase of illumination or perhaps even full and round, with a few lighter or darker areas but for the most part all in cool, bright shades of whites and greys. The moon’s real colors…
Titan’s High-Level Haze
Composite RGB spectral data image from Cassini’s latest flyby of Titan, September 24, 2010. Not much image adjustment needed, this was basically “out of the box”! I love the coloration in the different atmospheric layers. Original raw image can be seen here. Image: NASA/JPL/SSI. Edited by J. Major. Flickr – Photo Sharing!
Prominence Earth
A serpentine solar prominence snakes thousands of miles through space towards an unsuspecting Earth! This apocalyptic sci-fi scene is made up of two combined images of the sun from NASA’s SDO sapcecraft, acquired today September 25, 2010, superimposed and edited to show both surface (chromosphere) detail as well as coronal features, and an image of…
A Frozen Veil
A crescent-lit Enceladus ejects a frozen mist of water ice into space in this image, a combination of three raw files captured by the Cassini orbiter on September 22, 2010. At this high phase angle the jets become visible as the icy particles brightly reflect the sunlight passing almost directly through them towards Cassini’s lens….
A Salty Tail
Sometimes the line between “planet” and “comet” can get a little blurry…especially in Mercury’s case! This video, taken by NASA’s two-piece STEREO (Solar Terrestrial RElations Observatory) spacecraft – consisting of one unit orbiting the Sun just ahead of the Earth and another behind – shows Mercury over a four-day period, shining brightly in the solar…
Lights in the Dark 