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Earth's surface is the boundary between the atmosphere, and the solid Earth and oceans. Defined in this way, it has an area of about 510 million km 2 (197 million sq mi). [12] Earth can be divided into two hemispheres: by latitude into the polar Northern and Southern hemispheres; or by longitude into the continental Eastern and Western hemispheres.
On Christmas Eve 1968, American astronaut Bill Anders quickly snapped a photo of the Earth as he and his Apollo 8 crew members became the first human beings to orbit the moon.
NASA Earth Science, formerly called NASA Earth Science Enterprise (ESE) and Mission To Planet Earth (MTPE), [1] is a NASA research program "to develop a scientific understanding of the Earth system and its response to natural and human-induced changes to enable improved prediction of climate, weather, and natural hazards for present and future ...
Schematic of NASA Earth Science Division operating satellite missions as of February 2015. NASA Earth Science is a large, umbrella program comprising a range of terrestrial and space-based collection systems in order to better understand the Earth system and its response to natural and human-caused changes.
Data from NASA'S newest Earth-observing satellite will provide insight into ocean health, air quality, and the effects of a changing climate. ... The Today Show. Starbucks adds new Refresher ...
The core of the Earth is undergoing surprise structural changes, researchers believe.. A new study has seen scientists unexpectedly find that the inner core of our planet is changing its physical ...
Terra (EOS AM-1) is a multi-national scientific research satellite operated by NASA in a Sun-synchronous orbit around the Earth.It takes simultaneous measurements of Earth's atmosphere, land, and water to understand how Earth is changing and to identify the consequences for life on Earth. [1]
NASA Earth Observatory is an online publishing outlet for NASA which was created in 1999. It is the principal source of satellite imagery and other scientific information pertaining to the climate and the environment which are being provided by NASA for consumption by the general public.