challenge

A major part of the challenge was generating enough useful training data to teach the policy how to handle aggressive maneuvers without creating an unnecessarily large data set.

From Science Daily ● Sep. 22, 2026

He recounts how he approached a new challenge in an area where billionaires often tread but seldom triumph.

From The Wall Street Journal ● Sep. 22, 2026

"I keep encouraging students here to ask more questions, to challenge more, but that's hard to change. I think partly it's culture, partly it's the system."

From BBC ● Sep. 22, 2026

That framework was reassuring to me because it doesn’t require pretending that your 20s are just one long savings challenge.

From MarketWatch ● Sep. 22, 2026

Luckily, Penelope had always been good at charades, and she found she rather enjoyed the challenge.

From "The Interrupted Tale" by Maryrose Wood

He faces mounting challenges at home: a sputtering economy, a sweeping purge of the military’s top ranks, and a leadership reshuffle expected at next year’s party congress.

From The Wall Street Journal ● Sep. 23, 2026

In his speech, Burnham described the most advanced "Frontier AI" as "one of the most significant challenges and opportunities of our age".

From BBC ● Sep. 23, 2026

“He takes on challenges, but it’s not a, ‘Let me hurry up and get to this challenge, let me rush through this.’

From Los Angeles Times ● Sep. 22, 2026

The cost of college has been fueling these concerns for years and the recent challenges that young college graduates are facing finding entry-level jobs in the AI era have only exacerbated them.

From MarketWatch ● Sep. 22, 2026

Realizing medics faced particular challenges, he started a support group just for medics.

From "Boots on the Ground: America's War in Vietnam" by Elizabeth Partridge

The connection is one of the most counterintuitive features of quantum mechanics and has challenged physicists' understanding of reality for decades.

From Science Daily ● Sep. 20, 2026

Gen. Rob Bonta challenged the move, which is being decided by the California Supreme Court.

From Los Angeles Times ● Sep. 19, 2026

“Agency-led rules and guidance remain constrained by existing law and can be revised by future administrations or challenged in court,” said David Scheuermann, an investment analyst at Swiss crypto group Sygnum Bank.

From The Wall Street Journal ● Sep. 18, 2026

These meetings are designed to ensure treatment plans are reviewed and challenged by surgeons, radiologists, pathologists and cancer specialists - before major decisions, such as mastectomies, are made.

From BBC ● Sep. 17, 2026

Yet, once those ideas were challenged, progress was breathtakingly rapid—after fifteen centuries of stagnation, there have been fewer than another five centuries from the time of Copernicus to the present day.

From "The Scientists" by John Gribbin

Ford is hoping that a pivot towards military vehicles can help fill the void created by what the company's UK boss calls the most challenging environment since the invention of the motor car.

From BBC ● Sep. 22, 2026

Extreme weather conditions are wrecking equipment and challenging reliability.

From The Wall Street Journal ● Sep. 22, 2026

Lithium-ion battery fires are challenging to combat as excessive heat inside a battery creates a self-sustaining chemical reaction called thermal runaway that can then easily spread to adjacent batteries.

From Los Angeles Times ● Sep. 22, 2026

At Washington Monthly, they’ve incorporated an earnings metric for years and they try to control to some extent for subject matter, but it can be challenging, he said.

From MarketWatch ● Sep. 22, 2026

It was fun, or at least it was challenging.

From "A Thousand Sisters" by Elizabeth Wein