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Significant Event Report for Week Ending 10/15/1999
Cassini Significant Event Report For Week Ending 10/15/99 Spacecraft Status: The most recent spacecraft status is from the DSN tracking pass on Monday,10/11, over the Goldstone tracking station. The Cassini spacecraft is inan excellent state of health and is operating…
John Tyndall (1820 – 1893)
In 1859, John Tyndall’s experiments showed that even in small quantities, water vapor, carbon dioxide, and ozone absorbed much more heat than the rest of the atmosphere.
Flooding in Tarboro, North Carolina
Hurricane Floyd brought upwards of 18 inches of rain to areas of Eastern North Carolina on September 16, 1999.
Significant Event Report for Week Ending 10/8/1999
Cassini Significant Event Report For Week Ending 10/08/99 Spacecraft Status: The most recent spacecraft status is from the DSN tracking pass on Monday, 10/04, over the Canberra tracking station. The Cassini spacecraft is in an excellent state of health and…
Hubble Heritage Project’s First Anniversary
To mark the first anniversary of the Hubble Heritage Project, we present four Hubble telescope images of nebulae surrounding stars in our own Milky Way Galaxy. Two of these visible-light pictures show interstellar gas and dust around young stars at…
Starry Bulges Yield Secrets to Galaxy Growth
NASA’s Hubble Space Telescope is uncovering important new clues to a galaxy’s birth and growth by peering into its heart – a bulge of millions of stars that resembles a bulbous center yolk in the middle of a disk of…
Ozone Hole Over Antarctica
These images from the Total Ozone Mapping Spectrometer (TOMS) show the progressive depletion of ozone over Antarctica from 1979 to 1999. This “ozone hole” has extended to cover an area as large as 10.5 million square miles in September 1998.…
Significant Event Report for Week Ending 10/1/1999
Cassini Significant Event Report For Week Ending 10/01/99 Spacecraft Status: The most recent spacecraft status is from the DSN tracking pass onThursday, 09/30, over the Madrid tracking station. The Cassini spacecraftis in an excellent state of health and is operating…
Every Cloud Has a Filthy Lining
Sulfur dioxide in the exhaust from ship engines creates bright clouds.
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Descobertas, missões espaciais, pesquisas e avanços tecnológicos da agência espacial americana.