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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
1,000 simulations prove Earth isn't special, shattering cosmic myth | RBC-Ukraine
9+ hour, 38+ min ago (246+ words) Planets suitable for life may form naturally - without a rare coincidence of cosmic circumstances. Planetologists reached this conclusion after conducting over 1,000 computer simulations of terrestrial planet formation, according to SciTech Daily. For the past 30 years, scientists modeled planet formation using…...
NASA’s Juno found Io’s temperature rising by more than 40 degrees Fahrenheit within the upper few metres everywhere it sampled—not merely at the volcanic hotspots visible from space. The heat may be flowing broadly through the crust or escaping from young lava and buried vents, giving scientists their first look beneath the surface of a rocky moon.
12+ hour, 57+ min ago (1499+ words) Juno's microwave radiometer found a steep temperature increase below every region of Io sampled during two flybys, pointing to broad heat flow or concealed young lava and vents. By Deep Field · Edited by Lachlan Brown Published September 14, 2026 · How we edit…...
Why the search for alien life might start in lunar soil
21+ hour, 23+ min ago (565+ words) Futura, le média qui explore le monde Why the search for alien life might start in lunar soil A different kind of technosignature Searching for radio signals assumes alien civilizations are broadcasting at the precise moment humanity is listening. Pinault’s…...
If you're building a telescope, show it off at Stellafane
21+ hour, 41+ min ago (464+ words) For people who make their own telescopes, there’s no name like Stellafane. The annual convention, which dates back 103 years to a club called the Springfield Telescope Makers, takes place on Breezy Hill in Vermont, across the Connecticut River from Charlestown....
A New Era in Astronomy: The Roman Telescope Ascends
22+ hour, 39+ min ago (39+ words) Yahoo Listen to the thunderous roar of the rocket carrying the Roman Space Telescope to space. This next-generation observatory will explore dark energy, exoplanets, and the mysteries of the cosmos....
Are We Alone in the Universe?
19+ hour, 38+ min ago (507+ words) For as long as humanity has existed, we have looked up at the sky with the same question: Are we really alone in the Universe? If Earth is full of life, what about the …...
Webb telescope detects changes in Chariklo's rings
21+ hour, 7+ min ago (308+ words) Webb telescope detects changes in the rings of the small body Chariklo UA.NEWS Webb telescope detects changes in the rings of the small body Chariklo The James Webb Space Telescope has detected changes in the two rings of the…...
Neptune’s Tiny Moons May Be Wreckage Left by Triton’s Capture
1+ day, 2+ hour ago (378+ words) The small moons inside Neptune’s rings may be the surviving debris of a much larger moon system destroyed when Triton was captured billions of years ago. Neptune’s smallest moons look like minor members of the solar system. They are difficult…...
JWST finds Chariklo’s inner ring growing denser while its outer ring fades
1+ day, 3+ hour ago (429+ words) Chariklo’s inner ring is getting denser. Its outer ring is fading. Both changes are happening at the same time — and, for the moment, nobody knows why. The finding matters beyond Chariklo itself. Ring systems around planets had already shown that…...
Rubin Observatory reveals a breathtaking deep view packed with hundreds of thousands of galaxies
1+ day, 3+ hour ago (145+ words) starlust.org Rubin Observatory reveals a breathtaking deep view packed with hundreds of thousands of galaxies Watch: SpaceX fires all six Starship engines in a spectacular multi-angle static fire NASA's James Webb found newly formed stars glowing just outside the…...