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Cassini Detects No Lightning At Venus.
January 18, 2001
The Sound of Silence: Cassini Detects No Lightning At Venus
Mission to Mir Delayed
Report Suggests that Ice Could Form Channels on Mars
ESO telescope Snaps Picture of the Orion Nebula
THE SOUND OF SILENCE: CASSINI DETECTS NO LIGHTNING AT VENUS
You've probably heard lightning crackling on your radio, especially if you're listing to AM. Even when it's miles away,
it makes a loud crash. On it's way to Saturn, Cassini flew past Venus in both 1998 and 1999. On both passes, it listened carefully for the sounds of lightning. In this week's edition of Nature, astrophysicists announce that Cassini heard nothing but a little hiss from the normal radio background.
MISSION TO MIR DELAYED
Russian space officials announced that today's planned Progress launch has been pushed back to January 21 at 0656 GMT (10:56pm PST) - the delay was caused by electrical problems on Mir. When it does launch, the Progress will carry the fuel required by Mir to make its de-orbiting maneuvers to crash it back to Earth in March. Much of the aging space station is expected to burn up in the atmosphere; however, large pieces will land in the Pacific Ocean, off the coast of Australia.
REPORT SUGGESTS THAT ICE COULD FORM CHANNELS ON MARS
New research from the American Geophysical Union explores the possibility that some of the channels recently discovered on Mars could have been gouged by ice, and not by flooding, as suspected by other researchers. Some of the outflow channels on the Red planet are very similar in formation to ice streams found in Antarctica. The formation of the streams are different, though; on Earth they come from giant sheets of ice, while on Mars, they they could form when ice erupts from under the surface.
For More Information About Mars Visit Our Topics Section
ESO telescope SNAPS PICTURE OF THE ORION NEBULA
Astronomers recently took pictures of the Orion Nebula with the Infrared multi-mode ISAAC instrument on the ESO Very Large telescope (VLT) at the Paranal Observatory. The photograph is a composite mosaic of 81 separate images taken by the telescope during December 1999. The capabilities of the ground-based Paranal Observatory are nearly as good as the Hubble Space Telescope.
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