This is the first photo of the entire Earth taken in 43 years
There are many remarkable images of our planet, but since the well-known 'Blue Marble' image captured back in 1972, all of these photographs of Earth as a whole have been cunningly stitched together. But now NASA has issued a new photo of the pale blue dot we call Earth, including a Sun-drenched North and Central America dotted with milky white clouds. It was taken by a camera on board the Deep Space Climate Observatory (DSCOVR), which is hanging out in perfect gravitational equilibrium between Earth and the Sun, nearly 1.6 million km away. The image was taken on 6 July 2015 by the four megapixel Earth Polychromatic Imaging Camera (Epic) camera. The goal of DSCOVR is to take regular images of Earth in order to get better at observing and forecasting any 'space weather alerts', such as providing cautions of approaching solar flares. You can see a better version here, and below:
NASA offical Charlie Bolden said in a press release "This first Dscovr image of our planet demonstrates the unique and important benefits of Earth observation from space. Dscovr’s observations of Earth, as well as its measurements and early warnings of space weather events caused by the Sun, will help every person to monitor the ever-changing Earth and to understand how our planet fits into its neighbourhood in the Solar System." Each time Epic captures a photo, it captures a sequence of 10 images by means of different light filters, ranging from ultraviolet to near-infrared. This image is a combination of the red, green and blue filters, which just so happen to be the wavelengths of light that our eyes accept.
Dscovr is presently stationed in what's acknowledged as Lagrange point 1. Lagrange points are regions where the gravitational pull of two huge objects - such as Earth and the Sun - cancel each other out. This means that an object can stay there in orbit between the two bodies forever, with reasonably little effort. It also means that Dscovr will always be viewing our sunny side.
This is the first photo of the entire Earth taken in 43 years Reviewed by Umer Abrar on 7/23/2015 Rating: