This image Obtained from NASA shows asteroid 2015 TB145, a dead comet, in an image generated using radar data Collected by the National Science Foundation's 1,000-foot (305-meter) Arecibo Observatory in Puerto Rico. The radar image was taken on October 30, 2015. The space rock will shave by Earth's Halloween looks like a dead comet with a skull face, NASA said after Gaining a closer look at the spooky space junk. Photo – AFP / Lehtikuva.
A large rock resembling a skull face passed the Earth on Halloween, said the United States’ Nation-al Aeronautics and Space Administration (NASA).
The rock could not have been seen with a naked eye from earth, the astronomical association of Fin-land Ursa had earlier announced on Saturday.
NASA researcher who examined the rock by optical and radar observatories in Hawaii and Puerto Rico figured out that the rock was most likely a dead comet.
“The IRTF data may indicate that the object might be a dead comet, but in the Arecibo images it appears to have donned a skull costume for its Halloween flyby,” said Kelly Fast, as quoted in the NASA website.
According to NASA, the first radar images of the dead comet were generated by the National Science Foundation's 305-meter (1000-feet) Arecibo Observatory in Puerto Rico.
The radar images from Arecibo indicate the object is spherical in shape and approximately 2,000 feet (600 meters) in diameter and completes a rotation about once every five hours.
