
Watch NASA test its new X-59 jet designed to go faster than the speed of sound
This next-generation plane is made to go faster than sound without producing a full sonic boom

Watch NASA test its new X-59 jet designed to go faster than the speed of sound
This next-generation plane is made to go faster than sound without producing a full sonic boom

What is the AI compute crunch—and how will it affect chatbots?
Rate limits on Claude and other tools could hint at a deeper squeeze on the chips, power and data centers needed to run advanced AI. Researcher Lennart Heim explains


Scientists used AI to rewrite part of life’s alphabet
An engineered E. coli strain survived after one amino acid was designed out of many of its ribosomal proteins—an early test of whether life’s chemistry can be simplified

Could fusion energy soon join the U.S. power grid?
The fusion energy start-up Commonwealth Fusion Systems aims to bring its first power plant online by the early 2030s, but daunting technical hurdles remain

An electric air taxi passes its hardest test. When can passengers fly?
A British start-up recently pulled off a key maneuver for electric vertical flight—but certification, infrastructure and demand will decide whether air taxis fill our skies

A robot ran a half marathon faster than a human. Here’s why folding laundry is still harder
A premapped course, a crew of handlers and a world-beating time: here’s what this Beijing half marathon reveals about how far humanoid robots have come—and how far they haven’t

What is Mythos, Anthropic’s unreleased AI model, and how worried should we be?
The company says Mythos is too dangerous to release publicly. Cybersecurity experts agree the model's capabilities matter, but not all of them are buying the most alarming claims

AI music is booming, and the player piano saw it coming
As AI songs get harder to tell apart from human-made music, an older technology offers a revealing preview of the fight over artistry, labor and pay

How a lost 1812 wristwatch sparked a 200-year race in precision engineering
Modern luxury watches can be traced back to one of Napoleon Bonaparte’s younger sisters

Are expensive binoculars really worth it?
Binoculars and other far-range optics span a gamut of price points. Here’s what separates top-tier from entry-level

DARPA’s AI is built to call BS on wild weapons claims
The SciFy program tests whether adversaries’ most outlandish scientific claims add up or fall apart

Space hotels are coming soon
With the rise of private orbital habitats, vacations in space are becoming a real possibility for the ultrawealthy