Mapping the Northern Sky(maps.com)
32 points by tmseidman | 10 comments
Maps.com article featuring Florian Winkler's star map of the stars, Messier objects, and constellations of the Northern Hemisphere sky.
#astronomy on Hacker News
29 stories tagged astronomy, newest first.
Worlds more habitable than Earth?(nytimes.com)
76 points by cainxinth | 150 comments
New York Times science article about planets that might be more habitable than Earth; the capture shows a bot-block page instead of the article.
I think I found a planet nobody knew existed. I used Claude Code to find it(reddit.com)
231 points by pyduan | 113 comments
Reddit post in r/ClaudeAI where a user claims to have found a previously unknown planet using Claude Code; the page shown is a Reddit network-security block.
Show HN: AstroHelm – Use your phone camera to aim a telescope or telephoto lens(astrohelm.app)
79 points by HeavenFox | 26 comments
Landing page for AstroHelm, a mobile app that plate-solves the sky through a phone camera mounted on a telescope or camera to guide users to celestial objects.
Show HN: Nightwatch – a Mac menu-bar app that tells you when tonight is clear(github.com)
71 points by delphidolphin | 11 comments
GitHub repository for Nightwatch, an MIT-licensed macOS menu-bar app that notifies you when tonight's sky will be clear enough for telescope imaging.
A 12-year sequence of telescope images of a star and four planets orbiting(bsky.app)
387 points by mariuz | 79 comments
Bluesky post by Paul Byrne sharing a 12-year sequence of telescope images showing four massive exoplanets orbiting a star 133 light-years away.
Lunar Terminator Paradox(notes.secretsauce.net)
97 points by dima55 | 64 comments
Blog post by Dima Kogan explaining the lunar terminator paradox optical illusion, using a program he wrote to work out why the moon's lit side seems misaligned with the sun.
Mea Culpa – Dark Hours(blog.terrygodier.com)
568 points by satvikpendem | 255 comments
Terry Godier's blog post apologizing for problems with Dark Hours, a website he launched to show what can be seen in the night sky.
First atmosphere found on Earth-like planet in habitable zone of distant star(bbc.com)
506 points by neversaydie | 292 comments
BBC News article by Pallab Ghosh reporting the first detection of an atmosphere on an Earth-like planet in the habitable zone of a distant star.
A 26,000-year astronomical monument hidden in plain sight (2019)(longnow.org)
546 points by mkmk | 107 comments
Long Now Foundation article about the Hoover Dam's monument plaza, whose terrazzo star map encodes the 26,000-year precession of Earth's axis.
Astrophotographer snaps skydiver falling in front of the sun(iflscience.com)
443 points by doener | 86 comments
IFLScience article about an astrophotographer's image capturing a skydiver silhouetted against the sun, titled 'The Fall of Icarus'.
JWST reveals its first direct image discovery of an exoplanet(smithsonianmag.com)
319 points by divbzero | 138 comments
Smithsonian magazine article on the James Webb Space Telescope's first exoplanet discovery via direct imaging, made by blocking the host star's glare.
Vera C. Rubin Observatory first images(rubinobservatory.org)
551 points by phsilva | 152 comments
Vera C. Rubin Observatory's First Look page presenting an interactive zoomable image called "The Cosmic Treasure Chest" from its first observations.
If the moon were only 1 pixel: A tediously accurate solar system model (2014)(joshworth.com)
854 points by sdoering | 248 comments
An interactive horizontally scrolling scale model of the solar system where the Moon is one pixel wide, by Josh Worth.
How many supernova explode every year?(badastronomy.beehiiv.com)
348 points by rbanffy | 170 comments
Issue #447 of Phil Plait's Bad Astronomy Newsletter estimating how many supernovae explode in the universe every year.
James Webb Space Telescope reveals that most galaxies rotate clockwise(smithsonianmag.com)
333 points by instagraham | 276 comments
Smithsonian Magazine Smart News article on a JWST-based study finding most distant galaxies rotate clockwise, with possible explanations including a black-hole universe.
How fast the days are getting longer (2023)(joe-antognini.github.io)
575 points by antognini | 191 comments
A blog post by Joe Antognini explaining how quickly day length changes through the year and why, from an astronomical perspective.
Part two of Grant Sanderson's video with Terry Tao on the cosmic distance ladder(mathstodon.xyz)
359 points by ColinWright | 79 comments
Mastodon post by Terence Tao announcing part two of Grant Sanderson's video interview with him on the cosmic distance ladder, plus a blog post with commentary.
IAC confirms existence of a Super-earth in the habitable zone of a Sun-like Star(iac.es)
407 points by ohjeez | 265 comments
Press release from the Instituto de Astrofísica de Canarias announcing confirmation of a super-Earth orbiting in the habitable zone of a Sun-like star.
Show HN: Atlas of Space(atlasof.space)
701 points by pieix | 116 comments
Atlas of Space is an interactive browser-based visualization of the Solar System that simulates orbits of planets, moons, and asteroids using Newtonian physics.
Moon(ciechanow.ski)
2976 points by todsacerdoti | 248 comments
Bartosz Ciechanowski's interactive article explaining the Moon, its phases, and its orbital path around Earth.
Highest-resolution images ever captured of the sun’s surface(smithsonianmag.com)
477 points by Brajeshwar | 125 comments
Smithsonian Magazine Smart News article presenting four new highest-resolution images ever captured of the sun's entire surface, each made of 25 combined shots.
First images from Euclid are in(dlmultimedia.esa.int)
1345 points by mooreds | 363 comments
A 2.5-minute ESA video file showing images from the Euclid space telescope.
ESASky(sky.esa.int)
331 points by xioxox | 53 comments
ESASky is an ESA web application for visualising and downloading public astronomical data across the sky, shown here with its welcome mode-selection dialog.
Designing a Lego orrery(marian42.de)
576 points by _Microft | 60 comments
A blog post by Marian describing the design of a Lego Technic orrery modeling the Sun, Earth, and Moon with gear mechanisms.
Stellarium: Software which renders realistic skies in real time(github.com)
684 points by tosh | 157 comments
GitHub repository for Stellarium, a free GPL planetarium application that renders realistic skies in real time with OpenGL on Linux, Windows and macOS.
James Webb Space Telescope captures high-resolution image of Uranus(webbtelescope.org)
619 points by gmays | 266 comments
NASA Webb Space Telescope news release from December 2023 presenting a new infrared image of Uranus showing its rings and moons.
Euclid's First Images(esa.int)
396 points by perihelions | 97 comments
ESA article presenting the first full-colour images from the Euclid space telescope, including the Horsehead Nebula, a spiral galaxy, and the Perseus galaxy cluster.
James Webb Space Telescope reveals Fomalhaut's disk in detail(skyandtelescope.org)
372 points by gmays | 157 comments
Sky & Telescope news article on JWST imaging Fomalhaut's debris disk in unprecedented detail, published May 8, 2023.