We know who’s playing the Fab Four in Sam Mendes’s quartet of biopics, and we know (more or less) who’s playing their partners. But who's playing Bob Dylan? Or George Martin?
The unusual trajectory of interstellar comet 3I/ATLAS has sparked speculation that it could be an alien spacecraft.
Astronomers can usually spot "planet killer" asteroids long before they approach Earth. But what if they can't?
If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...
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