Astrophysicist provides reasons for humanity's existence in new book // TRAIN BRAIN

Astrophysicist provides reasons for humanity's existence in new book

ABC News' Linsey Davis spoke to astrophysicist Dr. Hakeem Oluseyi about his new book, "Why Do We Exist?" - the book delves deep into the nine unique realms that compose the cosmos.

ABC News

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Good Morning America Top News Stories - Wednesday, April 22, 2026

Wildfires sparking in Florida, Georgia

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Democrats want information from FBI director Kash Patel after scathing article

Virginia approves congressional map redraw that will favor Democrats, AP projects

Trump says he is extending ceasefire with Iran

FBI Director Kash Patel Denies Drinking Excessively – What You Need to Know: April 22, 2026

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Astrophysicist provides reasons for humanity's existence in new book

ABC News Live Prime: Apr. 21, 2026

Former Atlanta Mayor Keisha Lance Bottoms on new memoir

Sen. Slotkin on Iran: ‘I don't think anyone can say right now that we're through it’

Sen. Budd on Iran: ‘Nobody in the United States wants a prolonged war’

ABC World News Tonight with David Muir Full Broadcast - April 21, 2026

Rauw, Lil Yachty among rappers joining forces with new racehorse ownership group

Purdue Pharma faces sentencing in opioid case

2 US Embassy staffers killed in Mexico car accident were working for CIA: US official

Soccer season is heating up overseas

Former Atlanta Mayor Keisha Lance Bottoms on new memoir

Federal Reserve nominee Kevin Warsh says he will act independently from Trump

Jon Karl reports from top of Mount Rushmore

Trump extends ceasefire as Iran rebuffs peace talks

Hegseth ends mandatory flu vaccine for US military, says shot is now optional

6 Americans among those injured in Mexico pyramids shooting rampage

American Airlines avoids midair collision with Air Canada jet at JFK Airport

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Quick-thinking woman prevents disaster from electric wheelchair that catches on fire

Trump announces he's extending ceasefire indefinitely

Iran peace talks latest; new Apple CEO; Supreme Court retirement rumors|Searched - April 21, 2026

Trump announces he's extending ceasefire

Hens help raise kittens after mama cat gives birth in chicken coop

U.S. forces board sanctioned oil tanker in Indian Ocean, Pentagon says

What to know about Apple's next CEO

Katy Perry gently places credit card in Trevi Fountain ‘for good luck’

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Embattled Democratic Rep. Sheila Cherfilus-McCormick resigns from Congress

Nonverbal woman with cerebral palsy hopes to break state skydiving record

UK police pursuit ends with car flying over roundabout

Fed chair nominee Kevin Warsh's opening remarks at confirmation hearing

Good Morning America Full Broadcast - Tuesday, April 21, 2026

Gunman at pyramids north of Mexico City kills one Canadian tourist and injures at least six

Ceasefire Nears End; Jet Fuel Shortage Affecting Flights - What You Need To Know - April 21

Police have identified a California woman whose body was found in wilderness near Big Sur

President Trump's Fed nominee Kevin Warsh at impasse over Powell investigation

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In Virginia redistricting election, 4 House seats at stake as voters go to the polls

'The Devil Wears Prada 2' love interest on sequel: 'It felt surreal'

UNICEF on latest operation, ceasefire in Lebanon

Trump's Federal Reserve chair nominee Kevin Warsh testifies before Congress

Major heist involving Pokémon cards and collectible football cards

Legal analyst breaks down charges against D4vd

Opening statements to begin in Harvey Weinstein rape retrial

Labor Sec. Lori Chavez-DeRemer exits amid investigation into alleged misconduct

Two week ceasefire deal between U.S. and Iran set to expire on Wednesday

Nightline Full Broadcast — Monday, April 20, 2026

Good Morning America Top News Stories - Tuesday, April 21, 2026

Iran says it is preparing 'new cards on the battlefield' as ceasefire end approaches

Last Chance for Peace Deal in Iran? What You Need to Know – April 21, 2026

6 Americans injured in shooting at Mexico tourist site

Iran 'going to see problems' if they don't negotiate, Trump says

Feeling 'meh'?: Could it be your weight-loss medication?

True Crime Vault: House of Cards

Meryl Streep and Stanley Tucci at the "Devil Wears Prada 2" red carpet premiere

Tensions in Strait of Hormuz threaten fragile ceasefire

Award-winning actress Laurie Metcalf on new comedy series 'Big Mistakes'

ABC World News Tonight with David Muir Full Broadcast - April 20, 2026

All Access with Linsey Davis: Emma Grede

Possible motive in case against singer D4vd, who's charged with murder of teen

Police: Father killed 8 children in domestic disturbance

Southwest jets packed with passengers take evasive action to avoid midair disaster

Peace talks in question after U.S. seizes Iranian-flagged ship

Life jacket worn by Titanic survivor auctioned off for over $900,000

Canadian Prime Minister Mark Carney says economic ties with U.S. are now a weakness

Anne Hathaway and Emily Blunt talk "The Devil Wears Prada 2" at the red carpet premiere

Cannabis legalization debate shifts as federal reclassification looms

Heidi Klum at the "Devil Wears Prada 2" red carpet