Search tools for sky and science
Curated astronomy indexes
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 News & Web Pages
Once in a Blue Moon: A Rare Lunar Event Returns Th
3+ hour, 25+ min ago (271+ words) Casey Owens, Content Writer May's night sky is bringing a rare lunar event: a Blue Moon. A Blue Moon occurs when two full moons fall within a singlecalendar month. This Blue Moon will occur on the night of May 31." The…...
Gravitational wave detectors can now "auto-tune" their signals
53+ min ago (1049+ words) Eurek Alert! Infographic about Astro Calibration Credit: Shanika Galaudage (Northwestern University + Adler Planetarium) / Sylvia Biscoveanu / LVK Collaboration When a gravitational wave passes through the Earth, the LIGO, Virgo and KAGRA detectors are ready to detect it, but their sensitivity depends…...
Column: Global space race shifts from military to sovereign
1+ hour, 11+ min ago (134+ words) digitimes Column: Global space race shifts from military to sovereign The global space and defense industry is undergoing a strategic transformation " from treating space as a force multiplier to claiming it as a domain of sovereign control. Keep me signed…...
You Only See These Moon Pies Once in a Blue Moon, Here's Where to Find Them
45+ min ago (112+ words) Sporked Moon Pie's most elusive flavor, blueberry, has found its way back to Dollar Tree. We first spotted them two years ago and, true to their name, they're just now making a return. This version of the Moon Pie features…...
LVK scientists develop new astrophysical calibration method for gravitational wave detectors
13+ hour, 18+ min ago (370+ words) By Media India Group | May 13, 2026 | New Delhi In a press statement, LVK says that the method uses gravitational wave signals themselves to measure and correct the response of extremely sensitive instruments, ensuring that even when a detector is slightly misaligned…...
Artist Impression of Astrophysical Calibration for GW240925 & GW250207
53+ min ago (34+ words) (IMAGE) Eurek Alert! Artist Impression of Astrophysical Calibration for GW240925 & GW250207 More on this News Release Gravitational wave detectors can now "auto-tune" their signals...
Gravitational wave detectors can now tune themselves using black holes
1+ hour, 8+ min ago (780+ words) Black hole mergers are helping LIGO tune faulty detectors and sharpen the hunt for gravitational-wave sources. (CREDIT: University of Glasgow) Written By: Ross Barker / Edited By: Joseph Shavit Gravitational wave researchers working on the world's most sensitive scientific instruments have…...
Cruz, Cantwell Welcome NASA Artemis II Crew - U. S. Senate Committee on Commerce, Science, & Transportation
3+ hour, 10+ min ago (349+ words) Cruz, Cantwell Welcome NASA Artemis II Crew U. S. Senate Committee on Commerce, Science, & Transportation (. gov) Cruz, Cantwell Welcome NASA Artemis II Crew During the event, Chairman Cruz said: "Artemis II wasn't simply a successful mission " it was proof that this nation…...
Confirmation Gifts For Boys Antique Brass Telescope With Wooden Box - Vintage Look, 20x Magnification, For Celestial Viewing & Decor
1+ hour, 14+ min ago (159+ words) Add a touch of old-world adventure to your home with this antique-style brass telescope. It's fully functional with 20x magnification, so you can actually use it for stargazing, bird watching, or checking out distant views. But let's be real'it looks amazing…...
S. S. Meteor Celebrates 130 Years On Barkers Island In Superior This Saturday
5+ hour, 42+ min ago (217+ words) The S. S. Meteor is celebrating its 130th birthday this Saturday. The ship is the last-of-its-kind whaleback in the world. The Meteor is now a maritime museum on Barker's Island in Superior, Wisconsin. But did you know that this isn't the only whaleback…...