A so-called "planetary nebula" is a confusing misnomer because these clouds have nothing to do with planets. As a medium-size star nears the end, it puffs out into a red giant — about 100 to 1,000 times its original size — eventually engulfing the space around it, including any nearby worlds.
Trump has asked US oil firms to spend at least $100bn (£75bn) on restoring Venezuela's battered infrastructure – an absolute necessity before his plan to ramp up sales can be realised.
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