X-ray astronomy
= X-ray astronomy
{wiki=X-ray_astronomy}
X-ray astronomy is a branch of astronomy that studies astronomical objects and phenomena that emit X-rays, which are high-energy electromagnetic waves. Because X-ray radiation is absorbed by Earth's atmosphere, X-ray observations cannot be made from the ground. Instead, X-ray astronomers utilize satellites and space-based observatories to detect and analyze these high-energy emissions.