Jupiter, the largest planet orbiting the sun, used to be much bigger and stronger when the solar system was just beginning to take shape, a pair of astronomers say. Two scientists at Caltech and the University of Michigan suggest that early Jupiter was at least double its contemporary size.

Despite the rise in coal use, the fraction of carbon-free electricity held steady year over year, with wind/solar/hydro/nuclear accounting for 43 percent of all power put on the US grid. That occurred despite small drops in nuclear and hydro production.

I think it is quite clear that space weather was not the cause of the dramatic power outage in Spain recently'

Global electricity generation from solar farms is set to exceed output from nuclear reactors for the first time this summer, marking an important milestone in the continuing growth of solar power within global energy systems.

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond Neptune, it orbits the sun every 25,000 years.

There’s a new solar tariff in town, and it’s a biggie.

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million years. Uranus and Neptune were next, within 10 million years. The inner planets, including Earth, took at least 100 million years, maybe more.

There has been little light relief for European manufacturers of solar panels over the past few years. A glut of cheap Chinese solar panels triggered a flurry of factory closures, bankruptcies and downsizing as the bloc’s domestic companies struggled to compete.

Right now, Walmart has a fantastic Flash deal on the $1,000 Modern Shade Hardtop Gazebo — which can be yours for just $548 if you act fast. Get it. The sturdy, rust-resistant gazebo is made of galvanized steel and aluminum,