challenge

Understanding what causes these chemicals to form, and what might prevent their formation, has been a longstanding challenge.

From Science Daily ● Nov. 15, 2026

US District Judge Ana Reyes has been overseeing a months-long challenge to the president's plans for East Potomac Golf Links, which he said would be closed from 15 November for extensive renovations.

From BBC ● Nov. 15, 2026

In a 1989 book, one of 19 he has written, he wrote that “the coming ‘age wave’ will challenge and shake every aspect of our personal, social and political dynamics.”

From The Wall Street Journal ● Nov. 14, 2026

Garrett said he does not back down from a challenge by teammates.

From Los Angeles Times ● Nov. 14, 2026

“Like, some people took this challenge to a whole other level of crazy. Look at that one.”

From "Red Flags and Butterflies" by Sheryl Azzam

But any challenges could be slowed by a larger fight playing out over California’s coastal authority.

From Los Angeles Times ● Nov. 15, 2026

“We’ll sit in rooms just like this and sometimes with wings and pizza or beer, and we’ll just kind of brainstorm on what the really hard challenges are for that customer,” says Wood.

From The Wall Street Journal ● Nov. 14, 2026

With voter registration far from being completed, the schedule for a December vote also presented significant logistical challenges.

From Barron's ● Nov. 14, 2026

As a result, the mice remained less capable of launching effective immune responses when exposed to new challenges.

From Science Daily ● Nov. 13, 2026

Roz had traveled incredible distances and faced extraordinary challenges on her mission to stop the poison tide.

From "The Wild Robot Protects" by Peter Brown

Instead, they organized, challenged their own party, and made themselves harder to dismiss.

From Slate ● Nov. 13, 2026

Bangladesh's government challenged her on Tuesday to seek extradition from India if she was genuinely determined to return.

From Barron's ● Nov. 11, 2026

Three years later, she publicly challenged OpenAI after it unveiled a chatbot voice she said sounded eerily similar to hers, despite her having declined an offer to lend her voice to the company.

From Los Angeles Times ● Nov. 11, 2026

A spokesperson for A-CAP said it has challenged the order by Florida’s Office of Insurance Regulation and that it is working “constructively” and “in good faith” with regulators in the states that have taken action.

From The Wall Street Journal ● Nov. 11, 2026

I was making myself a snack in the kitchen, but due to the fact that I was vertically challenged, I couldn't reach a dish in one of our cabinets.

From "Americanized" by Sara Saedi

Despite the challenging market environment, Richemont is benefiting from the resilience of jewelry.

From The Wall Street Journal ● Nov. 13, 2026

Both companies will also play a key role in Artemis III, which is currently planned for summer 2027- another challenging schedule.

From BBC ● Nov. 13, 2026

Jenkins says the Italy shoot “was the hardest thing any of us had done” but despite the challenging work there, Roumie found something in his portrayal that surprised him.

From Los Angeles Times ● Nov. 13, 2026

“The experience of working with Liz helped us see how we could really formalize and build some institutional capacity to make sure great content about care gets made in a challenging media environment.”

From MarketWatch ● Nov. 13, 2026

The college had a more extensive and challenging curriculum than did the one at Geauga Seminary.

From "Ambushed!" by Gail Jarrow