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4Astronomy is a search engine built for people who look up. We combine multiple indexes, curated astronomy sources, and AI systems to return results tailored to astronomy topics. Use 4Astronomy to find observing guides, research papers, image archives, mission information, community resources, and products relevant to amateur and professional astronomy. Part of the 4SEARCH network of topic specific search engines.
Latest Articles
FCC greenlights 50,000 giant space mirrors to sell 'sunlight on demand' — scientists call it an 'existential threat"
3+ hour, 46+ min ago (1020+ words) Since our earliest ancestors turned their gazes toward the night sky, humans have marveled at ancient constellations, shooting stars, heavenly lights and galactic wonders laid bare. But now there's a battle brewing over who controls the sky — and if they…...
50,000 satellites with giant mirrors could beam daylight to Earth—for $5,000 an hour | The latest National and International News
4+ hour, 56+ min ago (419+ words) A California startup has secured federal approval to test satellites equipped with giant mirrors designed to reflect sunlight onto Earth during nighttime hours, sparking fierce debate over the future of solar energy and light pollution. The Federal Communications Commission granted…...
China’s Tianwen-1 Captures Rare Close-Up Images of Interstellar Comet 3I/ATLAS
7+ hour, 58+ min ago (336+ words) China’s Tianwen-1 orbiter caught a rare glimpse of 3I/ATLAS as it swept past Mars, revealing the hazy coma and tail of a comet born beyond our solar system. The image shows 3I/ATLAS’s comet-like features, which include its tail and the…...
James Webb Telescope reveals earliest blueprint of galaxies, finds IUCAA study
11+ hour, 57+ min ago (525+ words) Pune: Researchers at the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, have found that some of the earliest known galaxies were already surprisingly well organised less than a billion years after the Big Bang. Using deep images captured by…...
Nearby Earth-like planet may have a rare atmosphere, giving us new hope
4+ hour, 24+ min ago (0+ words) ...
Dark matter hides in the fifth dimension: new physics theory
8+ hour, 51+ min ago (319+ words) Physicists Propose Dark Matter Hides in a Fifth Dimension—A New Explanation Emerges inkorr.com Physicists Propose Dark Matter Hides in a Fifth Dimension—A New Explanation Emerges The Unseen Fifth Dimension: Scientists Explain Why Dark Matter Remains So Elusive…...
Dark Matter Found in Fifth Dimension: New Physics Theory
7+ hour, 48+ min ago (173+ words) According to НВ — Техно: July 18, 08:30 This new work offers a deeper explanation: the resonance may arise directly from the geometry of hidden dimensions. In the early universe, dark matter interactions were much stronger, but today they appear almost inert and…...
Beyond the Perseids: 6 meteor showers worth watching this summer
5+ hour, 16+ min ago (970+ words) The Perseids may steal the spotlight, but six lesser-known meteor showers could also light up summer skies. The Perseids may be the summer meteor shower everyone marks on the calendar, but they are not the only reason to look up…...
When is best time to see next full moon and why it's called buck moon
6+ hour, 21+ min ago (602+ words) The next full moon, known as the buck moon, will hit its fullest phase during the daytime hours of July 29, reaching peak illumination at 10:36 a.m. ET. But don't fret, there will still be ideal viewing opportunities the evenings of July 28 and…...
Your Complete Guide to the 2027 Total Solar Eclipse in Saudi Arabia
12+ hour, 48+ min ago (85+ words) CairoScene Egypt's Cosmetics Market Tops USD 900 Million in 2025 Hiba Elgizouli Pairs Sudanese Grooves With Lush Sonics on ‘Moya W Nar’ Album Spotlight: Tawsen - Chokran Mariam Ashraf's 'Made of Wood' Documents Damietta's Vanishing Trade Egypt to Open Five Water Technology Schools…...