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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
Europe's new Sentinel-3C satellite just sent back spectacular images of Earth
8+ min ago (1353+ words) Just two weeks after reaching orbit, Europe's new Copernicus Sentinel-3C satellite has delivered its first spectacular images of Earth, revealing everything from the snow-covered Alps to the frozen Arctic and the brilliant turquoise waters of the Caribbean. But the satellite…...
Artist Talk | Universarium: Picturing the Sky at the Yale
8+ hour, 47+ min ago (20+ words) CT Examiner Artist Talk | Universarium: Picturing the Sky at the Yale...
Satellites swarm the night sky over ESO observatories in stunning time-lapses
5+ hour, 57+ min ago (537+ words) Experience breathtaking time-lapses from the European Southern Observatory (ESO) in Chile, featuring the Very Large Telescope and Paranal Observatory. While the cosmic views are stunning, they reveal a growing problem: a swarm of satellites streaking across the night sky.Credit:…...
UAH astrophysicist Sukanya Chakrabarti elected Fellow of American Physical Society
48+ min ago (211+ words) Chakrabarti was selected for the honor by the American Physical Society’s Division of Astrophysics and elected by the APS Council of Representatives. The APS Fellowship recognizes exceptional contributions to the field, and the number of recommended nominees each year may…...
NASA may already have proof life once existed on another planet. Scientists might never get to find out
11+ hour, 27+ min ago (1708+ words) (CNN) — A leopard-spotted rock that could prove whether life ever existed beyond Earth is sitting in a tube on Mars. Perseverance has filled 33 tubes with rock, dust and atmospheric samples of Mars. Perseverance took a selfie, a mosaic of 62 individual…...
Spaceship Earth overview
36+ min ago (227+ words) The largest Walt Disney World discussion community, since 1996. - Disney Lakeshore Lodge (Project 89 - Development near Fort Wilderness)WDW Parks News, Rumors and Current Events · 5,379 replies · 2 min ago - Villains Land Announced for Walt Disney World's Magic KingdomWDW Parks News, Rumors…...
Update: SpaceX resets Space Force mission to blast off tonight from Vandenberg SFB
3+ week, 5+ day ago (186+ words) A scheduled Tuesday Falcon 9 launch of the USSF-259 mission was reset for Wednesday evening from Space Launch Complex 4 East at Vandenberg Space Force Base. The four-hour launch window opens at 6:07 to 10:07 p.m. If needed, a backup opportunity is available on Thursday,…...
Record-Breaking Fast Radio Burst from Early Universe Traced to Tiny, Star-Forming Galaxy
1+ hour, 52+ min ago (392+ words) This fast radio burst, designated FRB 20240304B, is the most distant ever detected, having traveled more than 10 billion years across the cosmos to reach Earth. This Webb image shows the host galaxy of FRB 20240304B (shown by the white cross). Image credit:…...
NASA shares stupendous ‘smiling’ galaxy clusters
1+ hour, 10+ min ago (247+ words) NASA has shown off a cosmic "smile" as an example of warped spacetime. The space agency posted an incredible observation on Sunday, Oct. 11, showing how gravitational lensing can magnify the light of a more distant background object. It wrote on…...
Some physicists question existence of dark energy
19+ hour, 57+ min ago (508+ words) BBC Science turned to a physicist at the University of Cincinnati for context about dark energy, which scientists say makes up 70% of the universe. UC College of Arts and Sciences Assistant Professor Jessica Muir was among a group of 400 scientists…...