"Delta requires masks on every flight for the safety of our customers and crew," said an airline spokeswoman.
Photographs taken from around the world and even from space show the recently discovered comet NEOWISE.
Airlines are following face-covering recommendations by the U.S. Centers for Disease Control and Prevention.
The volcano is infamous for a catastrophic eruption in 79 A.D. that destroyed the Roman settlements of Pompeii, Herculaneum, Oplontis and Stabiae.
The Los Angeles Police Department is investigating death of a child who flew on a Delta flight on December 26.
"If the enemy intends to invade, attack or even infringe on our country's skyline, which is one of our red lines," Iran's army air defense commander warned, "we can deal with it."
"No Man's Sky" update 2.03 has arrived on PS4, Xbox One and PC. Read the patch notes to learn everything new about Beyond.
Americans could end up paying $220 more for flights if they're not coupon-savvy.
Veteran flight attendants open the cargo hold on some of the worst passengers they've ever served.
A Frontier Airlines flight was forced to make an emergency landing Friday after passengers began screaming and signaling to the pilot that the engine cover was breaking apart from the plane.
"No Man's Sky" update 1.60 is going live on PS4 and Xbox One, and we have the full patch notes for all explorers to check out.
"No Man's Sky" update 1.55 has landed on PS4, Xbox One and PC. The patch notes feature lots of bug fixes.
Since 1990, bird collisions with aircraft have cost the aviation industry $1.2 billion in damages.
Tiangong-1 is losing its fight with Earth's incredible atmosphere.
Thinking of buying the "Final Fantasy XV" Royal Pack expansion released this week for PS4 and Xbox One? Here's a rundown of what you can expect.
The technology could halve the speed of commercial flights.
Usually, space debris ends up falling to Earth over oceans and in smaller pieces, making it harder to spot.
The Kremlin has glorified the Soviet Union, but it certainly doesn't want to celebrate overthrowing governments by force.
The Topol RS-12M can be fitted with a nuclear warhead and travel up to 6,800 miles, but it was local Russians who were most shaken by Tuesday's launch.