The Curiosity rover, which is designed to explore Mars, has found an ancient oasis on Mars. Researchers working with the Curiosity rover have found salt-enriched…
NASA/ESA Hubble Space Telescope captured image of the object, known as IRAS 19024+0044 in the constellation of Aquila (the Eagle). IRAS 19024+0044 is an dying star that is surrounded by a starfish-shaped cloud of gas and dust. This picture was created from images taken with the High Resolution Channel of Hubble’s Advanced Camera for Surveys. It is a composite image created by the combination of exposures taken through a yellow–orange filter (F606W coloured blue) and a near-infrared filter (F814W, coloured red).
The total exposure times were 880 s and 140 s, respectively and the field of view is approximately 13 by 13 arcseconds. IRAS 19024+0044 is blue in colour as the blue component of the light coming from the star is more easily scattered by the gas and dust in the nebula, while the red and orange rays are relatively unaffected. This is similar to what happens to sunlight in the Earth’s atmosphere, giving the sky its distinctive shade of blue.
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