David Muir News
NASA study reveals gene changes between twin astronauts
Scientists noted a 7 percent change in gene expression after Scott Kelly spent a year in space.
Several killed after pedestrian bridge at Florida International University collapses
This is an ABC news. George Stephanopoulos. Good afternoon we are coming on the air right now because there's been a pretty serious accident in Miami Florida that is the scene at Florida International University right now pedestrian bridge a brand new pedestrian bridge just built. Over the weekend
Steve Osunsami is an award-winning correspondent for ABC News based in the network’s Southern Bureau in Atlanta, contributing reports to “World News with David Muir,” “Good Morning America,” “Nightline,” and other ABC News broadcasts and platforms. He began his network career at ABC News in April
Celebrating the work, mind and humor of Stephen Hawking
��� Finally tonight here, he opened our eyes to the universe, and opened our minds to true human strength. It was the movie celebrating the groundbreaking work of one of the smartest minds in the world. Professor Stephen hawking. I'm a cosmologist. What's that? I study the marriage of space and
ABC's 'World News Tonight' sees rise among younger viewers
ABC's "World News Tonight" is sealing its rise to the top of the evening news competition with a milestone victory
Trump replaces Secretary of State Tillerson with CIA director
President Donald Trump today replaced Secretary of State Rex Tillerson with current CIA director Mike Pompeo.
Show explores the world beneath the ocean's surface
Producers filmed on every continent, following fish and highlighting global warming.
Forgotten camera provides rare glimpse of life in Antarctica
Okay, finally tonight, just try to beat this selfie. It's not possible. Reporter: An unbelievable sight. Those feet -- then the head. A curious emperor penguin finding an explorer's camera. Then, a second waddles into frame. Listen in. Chirping, inspecting the equipment they discovered. Both
Trump defies critics, makes steel and aluminum tariffs official
Tariffs go into effect after 15 days, with the exception of Canada and Mexico.
NBA player makes surprise visit to site of deadly school shooting
Finally tonight here, "America strong." The NBA star, the high school, and a much-welcomed visit. Dwyane wade! Reporter: Dwyane wade, the star player, returning to the Miami heat, showing up at Stoneman Douglas high school. On their feet, cheering high fives for the player who has been with them