Astronomers believe they have already located over 95% of near-Earth asteroids over 1km in diameter, which would have a global effect if any hit our planet.<\/p>\n
But finding the elusive last 5% has proved challenging.<\/p>\n
What comets and asteroids are in the sky tonight?<\/strong><\/em><\/a><\/p>\n \u201cLarge areas of sky are required because the inner asteroids are rare, and deep images are needed because asteroids are faint and you are fighting the bright twilight sky near the Sun as well as the distorting effect of Earth\u2019s atmosphere,\u201d says Scott S Shepard from the Carnegie Institution for Science<\/a>, that led the discovery.<\/p>\n \u201cDECam can cover large areas of sky to depths not achievable on smaller telescopes, allowing us to go deeper, cover more sky, and probe the inner Solar System in ways never done before.<\/p>\n \u201cOnly about 25 asteroids with orbits completely within Earth\u2019s orbit have been discovered to date because of the difficulty of observing near the glare of the Sun,\u201d says Sheppard.<\/p>\n![\"""\"](\""https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/25\/2021\/02\/GettyImages-183097871-f4941a3-e1674116860809.jpg?quality=90&resize=620%2C413"\" "\\"\"\"\\"\/")
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