Something peculiar is happening to rivers and streams in large parts of the United States — the water's chemistry is changing. Scientists have found dozens of waterways that are becoming more alkaline. Alkaline is the opposite of acidic — think baking soda or Rolaids.
Research published in the current issue of Environmental Science and Technology shows this trend to be surprisingly widespread, with possibly harmful consequences.
What's especially odd about the finding is its cause: It seems that acid rain actually has been causing waterways to grow more alkaline.
At least two waterspouts were seen over Lake Michigan on Thursday, near the Wisconsin border, amid strong winds and a marine warning issued by the National Weather Service.
The Associated Press says the waterspouts — tornadoes that form over the water — merged into one and then split again. The video below, taken by an amateur in Pleasant Prairie, Wis., appears to be a single, merged, waterspout:
NASA's two Voyager spacecraft, launched in 1977, have made history in a dramatic fashion by exploring the outer planets: Jupiter, Saturn, Uranus and Neptune. Now one of the vehicles, Voyager I, has made another pioneering leap. It is the first spacecraft to leave the vast bubble of hot gas that surrounds our solar system.
At long last, Voyager 1 is now in interstellar space.
Stop us if you've heard this one: A spacecraft flies out of the solar system ...
Yes, the planetary probe Voyager 1, launched in the era of Jimmy Carter and bell-bottoms, has finally left the room, so to speak, years after completing its primary mission: a "grand tour" of the gas giants Jupiter and Saturn (twin Voyager 2 also visited Uranus and Neptune).
And years after we first started talking about its departure.
Perhaps one of the most uncomfortable things a doctor has to tell patients is that their medical problems are iatrogenic. What that means is they were caused by a doctor in the course of the treatment.
Sometime these iatrogenic injuries are accidental. But sometimes, because of the limits of medical technology, they can be inevitable. Now, a medical researcher in Seattle thinks he has a way to eliminate some of the inevitable ones.
North Korea appears to be in the process of restarting a nuclear reactor used to produce weapons-grade plutonium, five years after shutting the facility down as part of international disarmament efforts.
New satellite imagery appears to reveal that the 5-megawatt reactor at Yongbyon, which experts believe can produce enough plutonium for one to two bombs a year, shows signs of being operational.
Satellite imagery and seismic data have identified two huge underground aquifers in Kenya's drought-prone north, a discovery that could be "a game changer" for the country, NPR's Gregory Warner reports.
The aquifers, located hundreds of feet underground in the Turkana region that borders Ethiopia and South Sudan, contain billions of gallons of water, according to UNESCO, which confirmed the existence of the subterranean lakes discovered with the help of a French company using technology originally designed to reveal oil deposits.