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Asteroid - Wikipedia
The first asteroid to be discovered, Ceres, was originally considered to be a new planet. This was followed by the discovery of other similar bodies, which, with the equipment of the time, appeared to be points of light, like stars, showing little or no planetary disc, though readily distinguishable from stars due to their apparent motions.
Asteroid 2018 CB will pass close to Earth on Friday - CNN
An asteroid between 50 and 130 feet wide will fly by the Earth on Friday on a path closer than the moon's, NASA said this week.
Asteroid Watch - Official Site
The Asteroid Watch Widget tracks asteroids and comets that will make relatively close approaches to Earth. The Widget displays the date of closest approach, approximate object diameter, relative size and distance from Earth for each encounter.
'Potentially hazardous,' 500-foot asteroid set to zoom ...
NASA has issued an alert that a "potentially hazardous asteroid" is on a "close approach" toward Earth. However, it's nothing to be alarmed at, as the asteroid is expected to zoom past the planet ...
Asteroid - definition of asteroid by The Free Dictionary
The asteroid passed several hundred yards from the projectile and disappeared, not so much from the rapidity of its course, as that its face being opposite the moon, it was suddenly merged into the perfect darkness of space.
Asteroid | Define Asteroid at Dictionary.com
Asteroid definition, any of the thousands of small bodies of from 480 miles (775 km) to less than one mile (1.6 km) in diameter that revolve about the sun in orbits lying mostly between those of Mars and Jupiter. See more.
Florence, a nearly 3-mile-wide asteroid, swings by Earth - CNN
The asteroid is no threat to Earth, NASA says.
What is an asteroid? :: NASA Space Place
There are lots of asteroids in our solar system. Most of them live in the main asteroid belt—a region between the orbits of Mars and Jupiter. Asteroids hang out in other places, too. For example, some asteroids are found in the orbital path of planets. This means that the asteroid and the planet ...
Asteroid and Comet Watch | NASA
NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind.
Asteroid Billiards: This Wild Idea to Protect Earth Just ...
Artist's illustration of a dangerous asteroid streaking toward Earth. Credit: European Space Agency Protecting Earth from dangerous space rocks might require a little asteroid-on-asteroid violence ...