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On Saturday, a limousine driver plans to launch himself on a mile-long flight over the Mojave Desert in a rocket of his own making.

His name is "Mad" Mike Hughes, his steam-powered rocket is built of salvaged metals, his launchpad is repurposed from a used mobile home — and he is confident this will mark the first step toward proving the Earth is flat, after all.

Emmerson Mnangagwa, the former vice president of Zimbabwe who is poised to take the helm of the country, was met with cheers in the capital city Harare when he returned to the country on Wednesday.

Mnangagwa fled the country earlier this month, citing fears for his life after Zimbabwe's authoritarian president Robert Mugabe fired him. That firing helped trigger a massive political upheaval.

Now Mugabe — the only leader Zimbabwe has ever known — has resigned under immense pressure, and Mnangagwa is set to be sworn in as president on Friday.

The ever-widening use of artificial lights is making the nighttime Earth glow increasingly brighter, with the amount of global light growing about 2 percent each year.

That worries advocates for the protection of dark skies, who say that artificial night glow can affect wildlife like migrating birds and keeps people from connecting to the stars. What's more, they say, all that wasted light sent out into space is effectively wasted money.

Puerto Rico is in the midst of the worst electricity outage in U.S. history. Most of the island remains without power more than two months after Hurricane Maria hit the island.

Some Puerto Ricans are saying that the current crisis should be a wake-up call that the island needs to move to a less centralized power system — and that solar power might be part of the solution. In other words, they believe Puerto Rico should follow the lead of many developing nations where solar power production is expanding rapidly.

Dr. Larry Nassar, the former Michigan State University sports doctor and USA Gymnastics team doctor accused of molesting or assaulting more than 100 girls and women, has pleaded guilty to seven counts of first-degree criminal sexual conduct and faces decades in prison.

This state criminal case involved seven of his accusers. There are other criminal charges pending, and many more girls and women have sued Nassar in civil cases.

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