CNN Health

While the death of Queen Elizabeth II has prompted public displays of grief worldwide, most people mourning or acknowledging her passing have never met her. What can explain this outpouring of grief for someone many people don't know?

The James Webb Space Telescope's main goal is to detect faint light from distant galaxies, but it recently observed one of the brightest objects in the night sky: Mars.

If you suffer from anxiety, depression or loneliness or feel stressed or worry frequently about Covid-19, you may be at higher risk of developing long Covid, a new study found.

Armani Williams is NASCAR's first driver to openly discuss his Autism.

It tastes like a tomato, smells like a tomato, and even looks (mostly) like a tomato. There's just one catch: It's purple.

A NASA spacecraft that will deliberately crash into an asteroid is getting closer to its target.

Hundreds of people across Scotland, Northern Ireland and northern parts of England spotted an unusual fireball lighting up the night sky Wednesday.

When photographer Marc Schlossman held an extinct, dead bird in his hand, he had what he called a "conversion moment."

Nobody wants to think about how their loved ones will cope when they die, but it's important to plan effectively to ensure a smooth transition of your wealth and worldly possessions -- even if you're young or feel like you don't have much to leave behind.

First, there were flavored cigarettes that tasted like chocolate or grape. Then came the e-cigarettes in flavors like cotton candy or gummy bear. Now, there are flavored gummies made with nicotine, and the US Food and Drug Administration isn't happy about it.

Scientists have debated its existence. Tiny traces provided clues. Now, researchers have confirmed the existence of a celestial diamond after finding it on Earth's surface.

Investigating the site of an ancient river delta, the Perseverance rover has collected some of the most important samples yet on its mission to determine if life ever existed on Mars, according to NASA scientists.

As part of the White House's Covid-19 response plan for the fall, the US Department of Health and Human Services is debuting its first video ad to encourage people to get the updated Covid-19 booster shot -- especially those who are 50 and older.

With its striking rings and tilted axis, Saturn is the showiest planet in the solar system. Now, scientists say they have a new theory as to how the gas giant got its signature look.

An August report from the US Centers for Disease Control and Prevention said that "even a single case of paralytic polio represents a public health emergency in the United States." CNN Medical Analyst Dr. Leana Wen explains why.

Survivors of sexual assault who are treated at emergency departments may be billed thousands of dollars for their care if they are uninsured, a new report finds, and even those with private health insurance have to cover some of the costs out-of-pocket.

Nine years ago, cycling activist Marley Blonsky was heartbroken and reeling from a divorce, until she found herself on a bike.

Since the beginning of the monkeypox outbreak, scientists and activists have pushed for the name of the virus and the disease to be changed to something "non-discriminatory" and "non-stigmatizing."

One might hope that children's capacity for boredom would be matched by an appetite for all things new -- if only parenting were so easy. Trying new things is difficult for many children, whether a different food, activity or skill. They like what they know, and they know what they like.

The death toll from Covid-19 is "both a profound tragedy and a massive global failure at multiple levels," the Lancet Covid-19 Commission said in a report Wednesday.