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Aura spacecraft detected the ozone layer.
Even through large levels of ozone were destroyed in the Earth's atmosphere this winter, NASA's Aura spacecraft detected that the ozone layer is actually looking quite healthy above the arctic, and did its job stopping harmful ultraviolet radiation. This strange paradox is explained by a very unusual winter in the Arctic, where stratospheric winds brought in large quantities of ozone from the Earth's middle latitudes. This was the first winter monitored by Aura, which was launched in 2004.
Cassini took this beautiful photograph of Saturn, shrouded behind its own rings. This image was taken in visible light on April 26, 2005, when Cassini was approximately 2.3 million kilometers (1.4 million miles) from Saturn. The photograph not only shows the A, B, and C rings, but they're also casting shadows onto the planet's atmosphere.
NASA announced today that it has begun preparing the Mars Phoenix lander spacecraft for its August 2007 launch to the Red Planet. This means the development of the spacecraft has passed a major milestone in its development. If all goes well, Phoenix will land in the far-northern plains on Mars, and search for possible indications of present or past life. The total cost, including launch will be $386 million USD.
The world's space and ground-based observatories are getting set to watch Deep Impact smash into Comet Tempel 1 on July 4, 2005 - it should be a great show. Since the spacecraft's impactor will smash into the Comet at such a high velocity, Telescopes will need to be calibrated very carefully to be able to properly capture the event. Between now and July 4, telescopes, such as Hubble and Spitzer will help pin down the exact size and shape of Tempel 1, to give observers the best scientific data.
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