Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

The five-year-old start-up, which has just 52 employees and is profitable, is now valued at $2.1 billion by investors including Andreessen Horowitz. By Niko Gallogly As an investment banker and ...

The round includes a secondary raise providing early employees with liquidity, recognizing the team’s role in building Gamma’s success SAN FRANCISCO--(BUSINESS WIRE)--Gamma, the fastest-growing AI ...

Gamma, a startup that creates AI-generated presentations, websites, and social media posts, announced on Monday a $68 million Series B round at a $2.1 billion valuation led by Andreessen Horowitz.

AI search company Perplexity launched its Comet browser today on Android. The startup debuted the AI-centric browser in July on desktop with AI-powered search. The company is bringing most of the ...

The AI-powered browser comes with Perplexity’s built-in AI assistant, which you can use to ask questions about what’s in your tabs. The AI-powered browser comes with Perplexity’s built-in AI assistant ...

A comet, dubbed C/2025 K1 (ATLAS), spectacularly broke apart into three huge chunks — and anybody with an eight-inch telescope or bigger can catch the resulting fireworks show for the next several ...

Despite some similarities and speculation, the new comet likely originated from our solar system's Oort Cloud and is not directly connected to 3I/ATLAS. The comet will make its closest approach to ...

A comet discovered earlier this year continues to break apart after its close brush with the sun this month. Astronomer Gianluca Masi of the Virtual Telescope Project captured breathtaking imagery of ...

A flying piece of cosmic rock or an alien threat? Comet 3I/ATLAS is hurtling through our solar system and captivating scientists and internet users alike, even prompting Kim Kardashian to ask NASA for ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Today, NASA released the most detailed images yet of 3I/ATLAS. The ...

NASA unveiled close-up pictures on Wednesday of the interstellar comet that's making a quick one-and-done tour of the solar system. Discovered over the summer, the comet known as 3I/Atlas is only the ...