President Donald Trump ran on a promise of more fossil fuels, fewer environmental regulations, and outright climate denial — and now he’s following through. His administration is gutting clean ...

Hence the name of Vox’s new package: Escape Velocity. Simply put, clean energy is no longer just the right thing to develop — it’s good business. Wind and solar? Among the cheapest sources ...

But to travel from low-Earth orbit (LEO) to farther orbits—or even the Moon—requires a different kind of ion thruster capable ...