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Cassini Significant Events 07/27/06 – 08/02/06
Cassini Significant Events 07/27/06 – 08/02/06 August 4, 2006 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Wednesday, August 2, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Heat Wave in North America and Western Europe
Deep red across both Europe and the United States in these land surface temperature images says one thing: July was hot. This image shows the difference in land surface temperatures from July 12-19, 2006, compared to the average temperatures during…
Beating the Heat in the World’s Big Cities
Green roofs can mitigate urban heat islands and heat waves.
New York City Temperature and Vegetation
As many urbanites know, summertime has its downside. The things we take for granted in cities—roads, sidewalks, brick buildings, and asphalt roofs—all intensify summer heat by trapping the Sun’s energy and remaining warm long after the Sun has set. This…
Sea Ice in the Beaufort Sea
From the time Europeans discovered the North American continent to the mid-twentieth century, sailors searched for a northwest passage that would connect the Atlantic Ocean (and Europe) to the Pacific Ocean (and Asia). No such passage exists through the continent,…
Ship Traffic on the Suez Canal, Egypt
This astronaut photograph captures a northbound convoy of cargo ships entering the Mediterranean Sea from the Suez Canal in Egypt.
Extraterrestrial Fireworks
Reminiscent of a U.S. July 4 Independence Day celebration, here is a NASA Hubble Space Telescope image of a cosmic explosion that is quite similar to fireworks on Earth. In the nearby galaxy, the Small Magellanic Cloud, a massive star…
Monterrey, Mexico
In northeastern Mexico’s Nuevo Leon state, the Sierra Madre Oriental (Eastern Sierra Madres) cluster in densely packed rows of arcing ridgelines. Just to the southwest of the city of Monterrey, these west-to-east running ridges make a sharp bend toward the…
Island Evolution, Part 3: Tureia Atoll
If you asked almost anyone to describe a tropical island, they would likely mention palm trees and flat, white sandy beaches that stretch for kilometers: they would describe a coral atoll. Coral atolls are normally long, thin bars of white…
Island Evolution, Part 2: Oeno Island
A bright strip of sand surrounds a pale blue lagoon and the remnants of a volcanic peak on Oeno Island. Sitting approximately 280 kilometers northwest of Pitcairn Island in the South Pacific, Oeno is a prime example of a tropical…
Cassini Significant Events 07/20/06 – 07/26/06
Cassini Significant Events 07/20/06 – 07/26/06 July 28, 2006 (Source: Cassini Project) The most recent spacecraft telemetry was acquired on Wednesday, July 26, from the Goldstone tracking complex. The Cassini spacecraft is in an excellent state of health and all…
Island Evolution, Part 1: Pitcairn Island
After exploring the South Pacific onboard the HMS Beagle, the young Charles Darwin theorized that the beautiful, low sandy islands built on coral reefs had started as rocky volcanic peaks. His theory, still accepted today, holds that reefs build around…
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Descobertas, missões espaciais, pesquisas e avanços tecnológicos da agência espacial americana.