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NASA warns of 'potentially hazardous' asteroid

Published time: January 10, 2014 17:55
Edited time: January 11, 2014 09:37
This artist's concept shows the Wide-field Infrared Survey Explorer, or WISE spacecraft, in its orbit around Earth. In September of 2013, engineers will attempt to bring the mission out of hibernation to hunt for more asteroids and comets in a project called NEOWISE. (NASA/JPL-Caltech)

This artist's concept shows the Wide-field Infrared Survey Explorer, or WISE spacecraft, in its orbit around Earth. In September of 2013, engineers will attempt to bring the mission out of hibernation to hunt for more asteroids and comets in a project called NEOWISE. (NASA/JPL-Caltech)

A new, “potentially hazardous” asteroid has been discovered by one of NASA’s recently reactivated spacecraft – and it’s headed in Earth’s direction.

The new asteroid, called 2013 YP139, was spotted by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE), and marks the spacecraft’s first discovery since being resurrected last year.

According to the Telegraph, the asteroid is still 27 million miles (43 million km) away from Earth, but with a diameter of nearly half a mile (0.4 miles, to be precise), an impact with our planet would cause significant damage. NASA estimates any asteroid with a diameter greater than 0.5 miles could create worldwide consequences upon impact.

The 2013 YP139 doesn’t quite raise concern to that level, but its trajectory has attracted the attention of NASA.

Fortunately, the space agency added that the asteroid will miss the Earth this time around, though it will fly by our planet at a distance of 300,000 miles, or about as close as the moon. It’s not expected to get any closer for the next century.

Before going into “hibernation,” the NEOWISE had discovered more than 34,000 asteroids in 2010 and 2011, with potentially hundreds of discoveries ahead. The spacecraft scans what’s typically a static space background, looking for disruptions it can follow and analyze.

"We are delighted to get back to finding and characterising asteroids and comets, especially those that come into Earth’s neighborhood," said Amy Mainzer of NASA’s Jet Propulsion Laboratory, who is leading the mission, according to the Huffington Post."With our infrared sensors that detect heat, we can learn about their sizes and reflectiveness."

In this image, X-ray light seen by Chandra with energy ranges of 0.5 to 2 kiloelectron volts (keV) and 2 to 4 keV is shown in red and green, respectively, while X-ray light detected by NuSTAR in the higher-energy range of 7 to 25 keV is blue. (Image credit: NASA/JPL-Caltech/McGill)

While this NASA spacecraft detects potentially dangerous objects, however, one of the agency’s telescopes just captured a remarkable image of space that’s been termed the “Hand of God.”

Although scientists aren’t sure if the shape in the image is an optical illusion, the result of a dying star 17,000 light years away has been the formation of an image that resembles a hand under an X-Ray.

According to scientists from the Nuclear Spectroscopic Telescope Array (NuSTAR) Mission – which investigates black holes, dying stars and more – the star’s particles are interacting with neighboring magnetic fields, causing a glowing reaction. The star is approximately 12 miles in diameter and spins about seven times every second.