The conclusive results are in….the LCROSS mission has successfully found water on the lunar surface! Although the plume from the satellite’s upper-stage rocket impact into Cabeus crater at the moon’s south pole was not immediately visible, there was still enough ejected material to be analyzed by LCROSS’ instruments. After reviewing the data over the past…
Good Morning Antarctica
Last night the Rosetta spacecraft took this stunning image of Earth, showing the rosy crescent of the southern pole lit by the summer sun. (It’s nearing the height of summer in Antarctica, when the sun never fully sets for several months.) Click for a larger view. Absolutely beautiful. I rotated the image so that south…
Hello, World
All I can say is ” 🙂 “. On its way back for its third and last flyby on Nov. 13, 2009, the European Space Agency’s Rosetta spacecraft captured this beautiful photo of our planet. The illuminated crescent shows the south polar region, with some of Antarctica’s sea ice reflecting brightly through the swirling clouds….
Sun Dance
This mesmerizing animation by photographer Alan Friedman shows a solar prominence as it changes structure over the course of 78 minutes. Solar prominences are eruptions of hot gases extending from the sun’s surface, held together by magnetic forces which constantly shift and move. They can last for days or months, and extend thousands and even…
Saturn’s Darker Side
Released November 9, 2009, this image from Cassini shows the northern night side of Saturn sending a deep shadow across its rings while the 700-mile-wide Dione looks on. The shepherd moon Pandora can be seen here as well, orbiting just outside the thin F ring, at center. The Cassini spacecraft was over 800,000 miles from…
Party Like It’s 2012
In light of all the curiosity and theories regarding the most recent world-ending cataclysm anticipated for the year 2012 (seems like there’s a new expiration date every decade or so), I thought I’d post a nicely informative article from the NASA FAQ page from last Friday, November 6. (No time? Bottom line…..regardless of the world’s…
Composition in White
949-mile-wide Rhea floats in front of the rings and the brightly-lit face of Saturn in this image from Cassini, taken on November 8. The face of Saturn, overexposed here in order to see detail in the rings and Rhea, appears as bright white, making a dramatic studio backdrop. The planet’s uppermost atmospheric haze is also…
Now that’s a big shadow!
This was a suprising find amongst the raw images from Cassini this evening….a photo of Saturn, similar to the one I posted previously, but with a massive shadow cast upon its southern hemisphere. I presume it’s from Titan, somewhere out of frame, based upon its size and hazy edges (indicative of the big moon’s thick…
Along the Edge
Moons Rhea and Enceladus orbit along the ringplane in this view from Cassini, taken November 6, 2009. That is, I think it’s Rhea and Enceladus in this image. It’s hard to tell for sure from this distance. (Cassini was over 1.2 million miles from Saturn when this was shot.) If anyone knows for sure, I’m…
Electric Blue
Yesterday’s Astronomy Picture of the Day was this fantastic image by the talented Alan Friedman, showing the sphere of our Sun taken in a special wavelength of light emitted by hydrogen gas and then inverted to look blue. Incredible details of the Sun’s surface – the chromosphere – become visible, most notably the texture…
KAGUYA’s Lunar Legacy
On Monday JAXA released more footage taken by the KAGUYA orbiter during its lunar mapping mission. KAGUYA spent several months flying over the moon at altitudes ranging from 10-50km (about 6-30 miles) taking video with its high-definition camera before finally ending its mission and crash landing onto the moon on June 10, 2009. The sequence…
Now With 6% More Mercury!
With the third and last flyby of Mercury by the MESSENGER spacecraft, NASA scientists have now imaged nearly 98 percent of the surface of the first planet from our sun. The photo above shows a color-calibrated view of a crescent Mercury, acquired on September 29. This will be the last close-up color image of Mercury…
Lights in the Dark 