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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
Alien Jellyfish or Camera Glitch? Experts Debate Odd Photo Taken on Mars
6+ min ago (26+ words) A photo taken by the Mars Curiosity Rover back in 2023 has resurfaced online, and that's because it shows something strange on the horizon....
NASA’s new space telescope will reveal the universe like never before
32+ min ago (761+ words) The observatory’s first years of work will usher in a new era of astrophysics The Nancy Grace Roman Space Telescope’s primary observation segment is shown here at NASA’s Goddard Space Flight Center in Maryland during the spacecraft’s assembly. NASA is…...
Konstantin Batygin said in June 2026 that discoveries from the Vera C. Rubin Observatory beginning that summer would directly test every line of evidence for Planet Nine — potentially revealing the hidden planet itself or showing that the strange orbital patterns behind the hypothesis were never real.
42+ min ago (1155+ words) Rubin can test Planet Nine by finding the world directly or determining whether the distant orbital patterns survive in an independent survey....
Ohio skywatchers witness a deep partial lunar eclipse
21+ hour, 17+ min ago (163+ words) Skywatchers across Ohio had a chance to catch a striking lunar eclipse as the full moon passed through Earth’s shadow late Aug. 27 and into Aug. 28. The event was a deep partial lunar eclipse, with about 96.2% of the moon’s surface entering…...
Video Partial lunar eclipse overnight
48+ min ago (195+ words) The moon took on a red hue overnight as Earth’s shadow covered nearly the entire visible surface of the moon across much of North America. Partial lunar eclipse overnight The moon took on a red hue overnight as Earth’s shadow…...
JWST Finds Planet-Forming Disks Losing Gas Before Giant Planets Grow
1+ hour, 32+ min ago (699+ words) Planets are assembled inside broad disks of gas and dust around young stars, but those disks do not last forever. A new James Webb Space Telescope survey shows that winds from young, Sun-like stars can remove the gas while planets…...
Could information be a fifth form of matter? Strange matter-antimatter experiment aims to find out
1+ hour, 41+ min ago (899+ words) Information fills hard drives, crosses computer networks and describes the properties of physical systems. One physicist argues it may also have something far more surprising: measurable mass. Dr. Melvin Vopson of the University of Portsmouth has proposed an experiment designed…...
Blood Moon total lunar eclipse: Will moon turn into red? Here's when and where to watch in US
2+ hour, 3+ min ago (562+ words) Two weeks following a total solar eclipse that captivated observers in southern Europe, a near-total lunar eclipse is scheduled to dazzle viewers on Thursday night throughout North and South America. Lunar eclipses take place when Earth positions itself between the…...
With e-MERLIN facing the axe, what next for Jodrell Bank and UK astronomy? – Physics World
4+ hour ago (218+ words) The UK’s Science and Technology Facilities Council (STFC) recently announced funding cuts to a range of physics and astronomy projects as it seeks to reduce costs. One of the most high-profile casualties is e-MERLIN, a network of seven radio telescopes…...