World’s Strangest

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Nuclear fusion propulsion proposed

Physicists are developing a pulsed nuclear fusion system to propel spacecraft in to deep space. Conventional spacecraft propulsion systems are too slo…

The Coolest Star in the Galaxy is No Warmer Than a Cup of Hot Coffee

Illustration: L. Calçada, ESO When you think of stars, do you think a hot ball of plasma in space? (I mean, our own Sun has a surface temperature of approximately 5,800 K). Well, not all stars are hot: a newly discovered star 75 light-years away from us is no warmer than a cup of coffee. Dubbed CFBDSIR [...]