Earth and space mingle in stunning ways for the 2025 Milky Way Photographer of the Year contest. From the “geological ...

Originating from the outer reaches of the Solar System—which it left millions of years ago—the C/2023 A3 Tsuchinshan-ATLAS comet is now within sight, in autumn 2024. Comet C/2023 A3 (Tsuchinshan-ATLAS ...

Comet Tsuchinshan-ATLAS was the rare comet that arrived with a year and a half of fanfare and lived up to the hype, serving up naked-eye views for weeks. If it was not a Great Comet, it was at ...

Perplexity AI's new WhatsApp integration offers instant fact-checking without leaving the app Perplexity responds with fast, sourced explanations in over 20 languages The feature aims to help ...

This spring, skywatchers have been treated to the captivating and unpredictable display of a new comet, called C/2025 F2 (SWAN). Discovered in late March 2025 through data from the SWAN instrument ...

The cometary impact model included the physics of the dynamics of the comet's breakup and thermal ablation (melting) of the comet's surfaces. They assumed a 2.5 km radius comet made of pure water ...

The Eta Aquarid meteor shower will light up the sky Monday, May 5 with a chance to see pieces of Halley's comet streak through the night sky. Here's what to know and when to watch. The annual Eta ...

The human eye takes about 30 minutes to adjust to the dark. The Eta Aquarids originate from Halley’s Comet, which was last seen in the night sky in 1986, according to NASA. First seen in 1705 by ...

"There's just a little window where a comet can approach from behind the Sun and be hidden," he says. In March, Michael discovered a green comet called C/2025 F2 SWAN — his tenth discovery using ...

This shower is one of two meteor showers associated with Halley’s Comet — the other being the Orionids in October. Halley’s comet is a periodic comet that appears in Earth’s sky roughly ...