NASA telescope uncovers 'planet killer' capable of ripping worlds apart
The data came from NASA's Chandra X-ray Observatory and the ESA's XMM-Newton. Previously, scientists discovered that a ...
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Unproven Einstein theory of 'gravitational memory' may be real after all, new study hints
Einstein's theory of general relativity suggests that the "memory" of ancient events, such as black hole mergers, may be ...