Supersonic passenger travel once promised a faster, more glamorous future before economics and physics forced it into history. We looked at how Boom Supersonic tried to revive that dream, from the ...

Costa Rica joined the United States’ Global Entry program yesterday, opening a faster path for pre-approved travelers to enter the U.S. The move marks a step forward in bilateral ties, focusing on ...

Social media posts by A.I.-created travel avatars cost far less to produce, yet look and sound real. Human influencers worry they’re being elbowed out. By Julie Weed Radhika’s thick black hair falls ...

JUST A FEW MINUTES. YOU MIGHT HAVE HEARD IT LATE LAST NIGHT. AN UNUSUAL NOISE HAS UPSTATE NEIGHBORS WORKING TO FIGURE OUT WHAT THE SOURCE COULD POSSIBLY BE. MANY OF US HEARD IT. OUR LEAH PHILLIPS ...

Have you ever stepped outside on a frigid, quiet morning and heard sounds emanating from somewhere far away? It's not your imagination—cold air really does carry sound farther. Sound begins with ...

Santa must travel at 8.2 million kilometers per hour to deliver gifts to 690 million children. Credit: Arun Agrawal / CC BY-SA 3.0 Dr. Laura Nicole Driessen, a postdoctoral researcher in radio ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy lifting was more challenging than I initially thought." When you purchase ...

Amanda Vining is a writer for Investopedia with 15 years of experience covering personal finance, including stories for Glam, MSNBC, Heavy, and Narcity. Based in Florida’s Gulf Coast, Amanda has ...

On Nov. 24 and 25, from 4:30 to 9:30 a.m., Sound Transit plans to test four-minute run times for 1 Line trains. Test trains displaying “Out of Service” will run alongside regular service trains. Test ...

Apple just announced that it is now allowing users to upload their passport information to their Apple Wallets. According to Apple’s press release, this Digital ID will be accepted at TSA checkpoints ...