An expert is somebody who has a broad and deep understanding and competence in terms of knowledge, skill and experience through practice and education in a particular field. Informally, an expert is someone widely recognized as a reliable source of technique or skill whose faculty for judging or deciding rightly, justly, or wisely is accorded authority and status by peers or the public in a specific well-distinguished domain. An expert, more generally, is a person with extensive knowledge or ability based on research, experience, or occupation and in a particular area of study. Experts are called in for advice on their respective subject, but they do not always agree on the particulars of a field of study. An expert can be believed, by virtue of credentials, training, education, profession, publication or experience, to have special knowledge of a subject beyond that of the average person, sufficient that others may officially rely upon the individual's opinion on that topic.

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You Will Never See The Northern Lights Without These 10 Expert Tips

Expert analysis refutes claims that humans are colonized by bacteria before birth

Humans Will Likely Not Have Ability to Visit Nearby Exoplanets Anytime Soon, Expert Says

An Expert Explains Why The Radioactive Water Stored at Fukushima Should Be Released

Obesity Expert Reveals What You Should Do When Weight Loss Plateaus

Younger, healthy people don't need another Covid booster, vaccine expert says.

Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass.

Ask a Caltech Expert: Physicists Explain Quantum Gravity

An Expert Explains Whether You Should Worry About Your Christmas Indulgences

These Medications Don't Mix Well With Alcohol. An Expert Explains The Risks

We All Lose Our Memory Sometimes. An Expert Explains When It's Time to Seek Help

Soyuz capsule leak could strand 3 astronauts on space station, raising safety concern, expert says

A Dating Expert Highlights Two Big Benefits Of Finding Your Intellectual Match

Is Lensa AI Stealing From Human Art? An Expert Explains The Controversy

Space debris expert: Orbits will be lost—and people will die—later this decade | "Flexing geopolitical muscles in space to harm others has already happened."

An Expert Explains How to Ease The Discomfort of Phantom Ringing Noises

Crabs Aren't The Only Things Evolution Keeps Making. An Expert Explains.

‘Life no longer as we know it’: war in space would have immediate effects, expert says

Astronomer and solar eclipse expert Jay Pasachoff dies at age 79

Computer Forecasts, Expert Judgment, And ‘Chimeric Forecasting’ Of Infectious Diseases