Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes rush to track its course.

A newly discovered asteroid has a tiny chance of striking Earth in 2032.

A newly discovered comet is swinging through our cosmic neighborhood for the first time in more than 400 years.

CAPE CANAVERAL, Fla. – An asteroid the size of a school bus is headed our way, but NASA says the space rock will zoom safely past Earth on Thursday. The newly discovered asteroid will come within 13,000 miles (22,000 kilometers) of Earth, well below many of the communications satellites orbiting the planet, scientists said this week. Scientists estimate the asteroid is between 15 feet and 30 feet (4.5 meters to 9 meters). Asteroid 2020 SW, as it is known, was discovered last Friday by the Catalina Sky Survey at the University of Arizona in Tucson. ___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education.