Astronomers have discovered 84 'hypersoft X-ray sources' – mysterious objects in other galaxies that emit unusually low-energy X-rays but intense levels of ultraviolet radiation, and could help solve two long-standing cosmic mysteries

Using NASA’s Chandra X-ray Observatory, scientists have discovered a new class of objects behaving unlike any they have seen before. Astronomers suggest these

Astronomers have discovered 84 'hypersoft X-ray sources' – mysterious objects in other galaxies that emit unusually low-energy X-rays but intense levels of ultraviolet radiation,…