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Sun erupts with powerful X-class flare as huge CME races toward Earth, impact possible within 24 hours

The powerful flare from sunspot region AR4341 peaked at 1:09 p.m. EST (1809 GMT), according to NOAA's Space Weather ...

The Search for Alien Artifacts Is Coming Into Focus

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...