If you’re concerned about your personal finances, or energy security or climate change, and you want to cut down on your use of fossil fuels, Sustainable Energy—Without the Hot Air explains which actions make a significant difference and which make very little.
Gargantuan black hole may be a remnant from the dawn of the universe
-
Astronomers were puzzled by a black hole around 50 million times the mass
of the sun with no stars, spotted by the James Webb Space Telescope – now
simulat...
4 hours ago



No comments:
Post a Comment