With Queen Elizabeth II'ss death, experts are raising questions about the monarchy’s legacy and its future.

Ukrainian troops reclaimed more territory from Russia on Monday, pushing all the way back to the northeastern border.

A mounting case for war crimes in Bucha, Ukraine, 20 miles outside of Kyiv, where calls for justice mount and a mass grave remains a haunting reminder.

The 73-year-old monarch shook hands with his people for the first time as king.

Ukraine is slowly recapturing land from Russia, President Volodymyr Zelenskyy said, adding, "Ukrainian flags are now back in a number of places."

Dr. Richard Alley, professor of geosciences at Penn State, explains the phenomenon called "zombie ice" and how it is expected to raise sea levels.

Remembering the late Kobe Bryant’s legacy after a California jury awards his wife Vanessa and co-plaintiff Chris Chester millions in damages over distribution of gruesome helicopter crash photos.

Mikhail Gorbachev, the last leader of the Soviet Union who presided over its dissolution, died at age 91.

City residents who survived six months of attacks by Russian forces are still picking up the pieces as the war rages on.

Fighting intensifies around Zaporizhzhia's nuclear power plant, and Russia is looking to block a UN Treaty that aims to prevent the spread of nuclear weapons while residents try to evacuate the area.

A Russian missile strike on an Ukrainian rail station killed at least 22 people, including an 11-year-old boy, on the country's Independence Day and President Biden announced largest aid package yet.

ABC News national security analyst Mick Mulroy discusses the war in Ukraine as explosions are reported in Crimea and thousands flee the area surrounding Europe’s largest nuclear power plant.

The Ukrainian intelligence agency is warning that Russian shelling strikes are landing dangerously close to the facility.

After playing for more than 20 years, Serena Williams wrote in an essay for Vogue that she is “evolving away from tennis.” Williams has won four Olympic Gold medals and 23 individual Grand Slams.

Willis’ family announced three months ago that the actor would be stepping away from his career.