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'Country killer' asteroid could obliterate parts of Earth as NASA updates threat level
NASA has been tracking the 100-metre-wide asteroid, called 2024 YR4, which was spotted by an automated telescope in Chile on December 27 with a state-of-the-art telescope ...
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New supernova discovery may hold key to the history of the Universe
For over 30 years, astronomers have relied on Type Ia supernovae to measure the universe’s expansion. These stellar ...