Castelion secures $350M in Series B funding led by Altimeter and Lightspeed. The defense startup will scale hypersonic production at its new 1,000-acre campus.

Singapore reports no 5G interference cases affecting aircraft operations, as global aviation bodies flag potential risks to ...

Altimeter Capital's chief executive has become an unlikely face of a new culture-war flashpoint on Wall Street, after a massive pledge to fund "Trump Accounts" for American children set off a frenzy ...

K2 Space secures $250 million in Series C funding led by Redpoint. The Torrance-based firm hits a $3 billion valuation as it ...

Students in St. Bernard Prep’s physics program recently traded textbooks for thrust as they wrapped up an ambitious ...

"Castelion is transforming the economics of our defense industrial base, " said Paul Kwan, Managing Director, General Catalyst. "Modern deterrence demands hypersonic capability at a pace, scale and ...

In this week’s edition of The Prototype, we look at a startup that’s industrializing big satellite manufacturing, transparent insulation and more.

These smartwatches made it to my New Year gifting list thanks to their health tracking, refined design and features that ...

This year was full of first-of-its-kind stories that got Americans talking. Here's a look back at some of the most talked about U.S. stories of 2025 outside of politics, from the Los Angeles wildfires ...

Then there is its future hands-off, eyes-off system. Rivian revealed it has developed its own custom 5nm processor, which it says will be built in collaboration with both Arm and TSMC. That chip will ...

More than 25 million cubic yards of rock and ice broke loose and plunged into Greenland's Dickson Fjord, creating a ...

Marie Sapirie considers policy arguments concerning the OBBBA’s “Trump accounts” for children and examines preliminary ...