Morgan Krakow The Washington Post

After voyaging thousands of miles across the Atlantic Ocean, climate activist Greta Thunberg made landfall in the United States on Wednesday afternoon. The 16-year-old began the journey two weeks ago to reach the United Nations climate summit in New York without producing any carbon.

A star collapses when it dies, spewing space dust in a giant cloud of elements that make for very beautiful Hubble Telescope photos.

A star collapses when it dies, spewing space dust in a giant cloud of elements that make for very beautiful Hubble Telescope photos. The "explosion," called a supernova, results in either a black hole or a small, dense star that no longer generates heat.

A teenager with measles was infectious when she visited Disneyland, Universal Studios and other tourist hotspots in Southern California earlier this month, public health officials said.

A mother panther walks into frame and pauses. She looks around, ears alert. One of her cubs appears and looks healthy and strong. Then her other cub stumbles into the frame and falls to the ground. The young cat doesn't have full control of its hind legs - as if a neurological disease, or even poisoning, is making the cub dangerously sick and vulne...

Paul Grenchick was surfing with friends along the Indiana shore of Lake Michigan on Thursday evening. Little did he know, just up the river, thousands of fish were dying, and investigators were struggling to determine exactly how much cyanide and ammonia had flowed into the lake after a spill at an industrial plant earlier in the week.

A beloved baby marine mammal in Thailand has died after consuming plastic and experiencing shock, Thai officials said Saturday.

An Illinois family is suing a nursing home and two of its former employees after a video appears to show caregivers taunting a 91-year-old woman.

A collection of bird bones sat idly in lab storage for more than a decade, believed to be the remains of an ancient eagle. Little did scientists know what was hiding in the fossils - a "Squawkzilla."

She said she feeds the stray cats in her neighborhood because it brings her comfort and companionship. Nancy Segula has been lonely, especially after the death of her husband in 2017.

Lizzie Daly was diving off the coast of Cornwall in Britain on Saturday when she saw something large in the distance, and did a doubletake. Daly had seen a barrel jellyfish before, but nothing of this size.

Moving out of any home is chaotic, but at the White House, moving the president's family is especially complicated, according to former first lady Michelle Obama. The best-selling author spoke about those final moments, as well as the Democratic presidential campaigns, with Gayle King in a nearly hour long interview

For a week in late-October 2017, data was collected as the object sped through the solar system.

After voyaging thousands of miles across the Atlantic Ocean, climate activist Greta Thunberg made landfall in the United States on Wednesday afternoon. The 16-year-old began the journey two weeks ago to reach the United Nations climate summit in New York without producing any carbon.

A star collapses when it dies, spewing space dust in a giant cloud of elements that make for very beautiful Hubble Telescope photos.

A star collapses when it dies, spewing space dust in a giant cloud of elements that make for very beautiful Hubble Telescope photos. The "explosion," called a supernova, results in either a black hole or a small, dense star that no longer generates heat.

A teenager with measles was infectious when she visited Disneyland, Universal Studios and other tourist hotspots in Southern California earlier this month, public health officials said.

A mother panther walks into frame and pauses. She looks around, ears alert. One of her cubs appears and looks healthy and strong. Then her other cub stumbles into the frame and falls to the ground. The young cat doesn't have full control of its hind legs - as if a neurological disease, or even poisoning, is making the cub dangerously sick and vulne...

Paul Grenchick was surfing with friends along the Indiana shore of Lake Michigan on Thursday evening. Little did he know, just up the river, thousands of fish were dying, and investigators were struggling to determine exactly how much cyanide and ammonia had flowed into the lake after a spill at an industrial plant earlier in the week.

A beloved baby marine mammal in Thailand has died after consuming plastic and experiencing shock, Thai officials said Saturday.

An Illinois family is suing a nursing home and two of its former employees after a video appears to show caregivers taunting a 91-year-old woman.

A collection of bird bones sat idly in lab storage for more than a decade, believed to be the remains of an ancient eagle. Little did scientists know what was hiding in the fossils - a "Squawkzilla."

She said she feeds the stray cats in her neighborhood because it brings her comfort and companionship. Nancy Segula has been lonely, especially after the death of her husband in 2017.

Lizzie Daly was diving off the coast of Cornwall in Britain on Saturday when she saw something large in the distance, and did a doubletake. Daly had seen a barrel jellyfish before, but nothing of this size.

Moving out of any home is chaotic, but at the White House, moving the president's family is especially complicated, according to former first lady Michelle Obama. The best-selling author spoke about those final moments, as well as the Democratic presidential campaigns, with Gayle King in a nearly hour long interview

For a week in late-October 2017, data was collected as the object sped through the solar system.