Israel, a non-NPT signatory, may possess 200-400 nuclear warheads. Its minister's bomb remarks hint at this arsenal. The NPT encourages nonproliferation but excludes Israel, highlighting global nuclear hypocrisy and tension.
Some analysts said the main international oil price, which was up 6 percent on Monday, could climb much higher in the coming weeks if the Strait of Hormuz doesn’t reopen.
An oil refinery in Carson, Calif. The possibility of continued fighting has raised concerns about how long the world’s stockpiles of oil and fuels will last if the Strait of Hormuz does not reopen.
Aviation start-ups and the Trump administration want to replace helicopters with electric aircraft, but the new vehicles still have to pass arduous tests before the public can use them.
By studying fungal microfossils in 66-million-year-old rock samples from the Denver Basin in Colorado, Johns Hopkins University microbiologists have confirmed that the dinosaur-killing asteroid impact triggered a worldwide fungal takeover, and uncovered a second, previously unknown ecological crisis just before it.
Paleontologists have described a new species of bipedal shuvosaurid archosaur from New Mexico, shedding light on a group of creatures that roamed North America during the Triassic period, more than 200 million years ago.
The American Federation of Teachers recommended “no screens” at all for those in second grade or younger, and no A.I. chatbots for students in elementary school.
Companies say it’s a better way to dispose of the Cold War-era material — and fix a shortage of nuclear fuel. But the plan has also faced criticism from nonproliferation experts.
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