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Antarctic Ozone Hole, October 1999
This image shows the latest data from the Total Ozone Mapping Spectrometer (TOMS) Earth Probe, for the month of October 1999.
Significant Event Report for Week Ending 11/12/1999
Cassini Significant Event Report For Week Ending 11/12/99 Based on the most recent spacecraft telemetry data acquired from the Canberra tracking station on Tuesday, 11/09, the Cassini spacecraft is in an excellent state of health and is operating normally. The…
Eye on the Ocean
El Niño Southern Oscillation events have become easier to predict, thanks to the TOPEX/Poseidon satellite.
The Trifid Nebula: Stellar Sibling Rivalry
This Hubble telescope image of the Trifid Nebula reveals a stellar nursery being torn apart by radiation from a nearby, massive star. The picture also provides a peek at embryonic stars forming within an ill-fated cloud of dust and gas,…
El Nino’s Extended Family: An Introduction to the Cyclic Patterns That Determine Global Weather
Cyclic patterns in the ocean and atmosphere shape global weather.
Hurricane Floyd Effects on Coastal Ecology
A NASA oceanographer, using spaceborne technologies to study the effects of Hurricane Floyd, has seen indications that there may be significant impacts on the marine food chainalong the North Carolina coast due to extensive rainfall in the region.“Following Hurricane Floyd,…
Significant Event Report for Week Ending 11/5/1999
Cassini Significant Event Report For Week Ending 11/05/99 Spacecraft Status: The most recent spacecraft status is from the DSN tracking pass on Tuesday, 11/02, over the Canberra tracking station. The Cassini spacecraft is in an excellent state of health and…
A Grazing Encounter between Two Spiral Galaxies
The Hubble telescope has caught a cosmic dance between two spiral galaxies. The larger galaxy, NGC 2207, is on the left; the smaller one, IC 2163, is on the right. Their dance has already caused quite a stir. Strong gravitational…
Evolving in the Presence of Fire
In the Far North, fire is critical for renewing the boreal forest. But changes in fire frequency or size may convert the forest from a carbon dioxide sink to a source of greenhouse gas emissions.
Global Data
This globe shows data collected from multiple satellite sensors and integrated into one image. It represents the capabilities of NASA’s EOS Terra satellite, currently being prepared for launch, which will view the Earth with a series of interrelated instruments.For more…
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Descobertas, missões espaciais, pesquisas e avanços tecnológicos da agência espacial americana.