That spooky hand in the image above is producing questions for scientists. While the shape only coincidentally looks like a human hand, scientists are still trying to figure out how a small star produced such a large shape visible in X-rays. Pulsar star PSR B1509-58 (or B1509 for short) is a 12-mile (19-kilometer) remnant of … Continue reading "This Spooky X-Ray ‘Hand’ Demonstrates A Pulsar Star Mystery"