In 1895, Wilhelm Röntgen discovered X-rays and used them to image the bones in his wife’s hand, kicking off a revolutionary diagnostic tool for medicine.
Around 1,500 years ago, a giant star in our Galaxy ran out of nuclear fuel to burn. When this happened, the star collapsed onto itself and formed an extremely dense object called a neutron star.
The science behind NASA's 'ghost hand' image
Two of NASA's orbiting X-ray observatories have combined efforts this Halloween, imaging a ghost hand reaching out to us from space.
But all is not as it appears. This skeletal hand is actually the glowing gas of a pulsar wind nebula . This nebula, energized by the super-hot, super-magnetic remnant of a star that exploded some 1,500 years ago.
Eerie new NASA image shows "ghostly cosmic hand" 16,000 light-years from Earth - CBS News
Just in time for Halloween, NASA has released a spooky new image that the space agency says shows the "bones" of a "ghostly cosmic hand."
The hand is actually the remnants of a collapsed giant star, which ran out of nuclear fuel around 1,500 years ago, NASA said in a news release , and is about 16,000 light-years from Earth. After collapsing, it became a dense neutron star.
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