radiation emitted by objects during the day and night
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The satellite image will have more realistic surface of the Earth compared to photograph.
Pixels
It is called a Thermogram, or a Thermal Image
remote sensing
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You can go to Google Images and search true color satellite image of New York or Infrared satellite image of New York.
The satellite image shows topography, natural and manmade features without political borders.
Cloud cover, poor lighting conditions, or the angle of the satellite's view could obscure the erupting volcano from being visible in the image. Additionally, the timing of the satellite pass may not coincide with the eruption.
because its dark
Photos taken of Earth from an orbiting satellite
A satellite image might fail to show an erupting volcano at night because the satellite sensors may not be able to capture detailed heat signatures in darkness. The lack of sunlight can make it difficult for the sensors to detect the thermal radiation emitted by the erupting volcano, resulting in a lesser or no visual representation of the volcanic activity.
Sorry, but satellite images can't show that level of detail!
The Infrared Astronomical Satellite was the first-ever space-based observatory to perform a survey of the entire sky at infrared wavelengths. It uses infrared light.
The satellite image taker?
Infrared photography was developed to give the consumer more choices for the type of picture produced from one image. With infrared, a picture can be in color, in distorted colors, or even in black and white, all from the same image.
Photographs can't... infrared is a possibility.