Abstract: A millimeter-wave (mmW) 3-D imaging system using high scanning-rate leaky-wave antennas in a frequency-diverse multiple-input–multiple-output (MIMO) antenna configuration is proposed. A ...

Coming off a franchise-best 116-point season and Central Division title, the Jets started 2024-25 so fast and never looked back, but in the end, a six-game loss to the Dallas Stars in Round 2 left ...

A newly discovered comet, C/2025 A6 (Lemmon), is gaining attention as it heads toward Earth for a close flyby this October. With a distinctive lime-green glow, this comet could soon be visible to the ...

Abstract: This paper outlines the general requirements to compute the specific absorption rate (SAR) from wearable antennas. It also provides a flowchart detailing the proposed methodology for this ...

IT之家10 月 3 日消息，Perplexity 今日宣布，旗下 AI 浏览器 Comet 现已面向全球用户免费开放下载。Perplexity 称，自今年 7 月发布以来，已有“数百万”用户加入候补名单。 在此之前，该产品曾以每月 200 美元（IT之家注：现汇率约合 1425 元人民币）的高价提供订阅 ...

Perplexity has officially made its AI-powered web browser Comet available to all Free, Pro, and Max users worldwide, ending its prior invitation-only or subscription-only restriction. Comet blends ...

Perplexity AI on Thursday announced the tech startup's Comet browser -- which is powered by artificial intelligence -- now is free to download and available globally. File Photo by ...

Comet is now available globally for free. It debuted in July for $200-per-month. It's part of a broader industry effort to AI-ify browsers. Perplexity announced Thursday that its AI-powered web ...

An interstellar visitor to our solar system known as 3I/ATLAS has captivated the public for months, and it's not hard to see why. But for scientists around the world, the discovery that 3I/ATLAS is ...

AI search startup Perplexity is making its new Comet browser available to everyone in the world for free as it works to position the product against big browsers and search engines. For certain paid ...

This image composed from multiple exposures and provided by NSF's NOIRLab shows a comet streaking across a star field above the International Gemini Observatory on Cerro Pachon, near La Serena, Chile.