Astronomers have spotted three near-Earth asteroids that were lurking undetected within the glare of the sun. One of the asteroids is the largest potentially hazardous object to Earth to be discovered in the last eight years.
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have spotted three near-Earth asteroids that were lurking undetected within the glare of the sun. One of the asteroids is the largest potentially hazardous object posing a risk to Earth to be discovered in the last eight years.
As the space rock moves closer to our star, its surface reaches temperatures hot enough to meld lead. Asteroid-hunting astronomers face quite a challenge if they want to find space rocks within the inner solar system – which includes Mercury, Venus, Earth, Mars and the main asteroid belt. In order to avoid the harsh light of the sun, they only have two 10-minute windows each night to sweep the area with ground-based telescopes.
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