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Hacker News

Lunar Radio Telescope to Unlock Cosmic Mysteries

https://spectrum.ieee.org/lunar-radio-telescope

#HackerNews #LunarRadioTelescope #UnlockCosmicMysteries #SpaceExploration #Astronomy #Innovation #ScienceNews

IEEE Spectrum

The Quest to Build a Radio Telescope That Can Hear the Cosmic Dark Ages

A radio telescope on the moon's far side could change our understanding of the universe. Learn how LuSEE-Night plans to listen to the cosmos like never before.

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More from

IEEE Spectrum

Hacker News

@h4ckernews@mastodon.social · yesterday

The 26,000-Year Astronomical Monument Hidden in Plain Sight

https://longnow.org/ideas/the-26000-year-astronomical-monument-hidden-in-plain-sight/

#HackerNews #AstronomicalMonument #HiddenInPlainSight #LongNow #AncientHistory #SpaceExploration #26000Years

Long Now

The 26,000-Year Astronomical Monument Hidden in Plain Sight

The western flank of the Hoover Dam holds a celestial map that marks the time of the dam’s creation based on the 25,772-year axial precession of the earth.

Hacker News

@h4ckernews@mastodon.social · 3 days ago

Folding NASA Experience into an Origamist's Toolkit

https://spinoff.nasa.gov/Folding_NASA_Experience_into_an_Origamist%E2%80%99s_Toolkit

#HackerNews #FoldingNASAExperience #Origami #Toolkit #Innovation #SpaceExploration #NASA

Folding NASA Experience into an Origamist’s Toolkit | NASA Spinoff

Hacker News

@h4ckernews@mastodon.social · 5 days ago

Earth from Space: The Fate of a Giant

https://www.esa.int/ESA_Multimedia/Images/2026/01/Earth_from_Space_The_fate_of_a_giant

#HackerNews #EarthFromSpace #FateOfAGiant #ESA #SpaceExploration #Astronomy #Science

Earth from Space: The fate of a giant

This Copernicus Sentinel-2 image over the South Atlantic Ocean features a close-up view of the A23a iceberg, once the world’s largest. The unusually cloud-free image shows the first signs that the iceberg will soon disintegrate completely.

Wonders of Creation

@wondersofCR@mastodon.social · 2 weeks ago

If Matter & Antimatter Were Created Equally, What Symmetry-Breaking Mechanism Allowed The Dominance Of Matter We Observe Today? Learn More: https://astronex.net/if-matter-antimatter-were-created-equally-what-symmetry-breaking-mechanism-allowed-the-dominance-of-matter-we-observe-today/

#space #astronomy #NASA #science #solarsystem #astro #nature #mars #esa #spacex #planets #spaceexploration

Astronex

If Matter & Antimatter Were Created Equally, What Symmetry-Breaking Mechanism Allowed The Dominance Of Matter We Observe Today?

The observable universe contains an overwhelming abundance of matter over antimatter, with no significant reservoirs of primordial antimatter detected

Hacker News

@h4ckernews@mastodon.social · 3 weeks ago

Einstein Probe detects an X-ray flare from nearby star

https://phys.org/news/2025-12-einstein-probe-ray-flare-nearby.html

#HackerNews #EinsteinProbe #XRayFlare #Astronomy #News #SpaceExploration #StellarEvents

Hacker News

@h4ckernews@mastodon.social · 3 weeks ago

Contact the ISS

https://www.ariss.org/contact-the-iss.html

#HackerNews #ContactTheISS #ISSCommunication #SpaceExploration #AmateurRadio #NASA

ARISS

Contact the ISS

Hacker News

@h4ckernews@mastodon.social · 3 weeks ago

Akin's Laws of Spacecraft Design [pdf]

https://www.ece.uvic.ca/~elec399/201409/Akin%27s%20Laws%20of%20Spacecraft%20Design.pdf

#HackerNews #AkinsLaws #SpacecraftDesign #PDF #Engineering #SpaceExploration #RocketScience

View (PDF)

Hacker News

@h4ckernews@mastodon.social · 4 weeks ago

Astrophotography Target Planner: Discover Hidden Nebulas

https://astroimagery.com/techniques/imaging/astrophotography-target-planner/

#HackerNews #Astrophotography #Nebulas #HiddenTargets #Astronomy #Photography #SpaceExploration

Astro Imagery

Astrophotography Target Planner: Discover Hidden Nebulas with My New App

Discover hidden and less well know nebulae and deep sky objects with my astrophotography target planner.

Hacker News

@h4ckernews@mastodon.social · last month

An Orbital House of Cards: Frequent Megaconstellation Close Conjunctions

https://arxiv.org/abs/2512.09643

#HackerNews #OrbitalHouseOfCards #Megaconstellations #SpaceExploration #CloseConjunctions #AstronomyNews

arXiv.org

An Orbital House of Cards: Frequent Megaconstellation Close Conjunctions

The number of objects in orbit is rapidly increasing, primarily driven by the launch of megaconstellations, an approach to satellite constellation design that involves large numbers of satellites paired with their rapid launch and disposal. While satellites provide many benefits to society, their use comes with challenges, including the growth of space debris, collisions, ground casualty risks, optical and radio-spectrum pollution, and the alteration of Earth's upper atmosphere through rocket emissions and reentry ablation. There is substantial potential for current or planned actions in orbit to cause serious degradation of the orbital environment or lead to catastrophic outcomes, highlighting the urgent need to find better ways to quantify stress on the orbital environment. Here we propose a new metric, the CRASH Clock, that measures such stress in terms of the time it takes for a catastrophic collision to occur if there are no collision avoidance manoeuvres or there is a severe loss in situational awareness. Our calculations show the CRASH Clock is currently 2.8 days, which suggests there is now little time to recover from a wide-spread disruptive event, such as a solar storm. This is in stark contrast to the pre-megaconstellation era: in 2018, the CRASH Clock was 121 days.

Hacker News

@h4ckernews@mastodon.social · 2 months ago

Rare X-ray images of a 4.5-ton satellite that returned intact from space

https://www.empa.ch/web/s604/eureca-satellit-mit-roentgenmethoden-untersucht

#HackerNews #RareXrayImages #SatelliteSpace #ReturnFromSpace #SpaceExploration #EmpaResearch

Hacker News

@h4ckernews@mastodon.social · 2 months ago

I turned algae into a bio-altimeter and put it on a weather balloon

https://radi8.dev/blog/stratospore/

#HackerNews #bioaltimeter #algae #weatherballoon #innovation #spaceexploration

Hacker News

@h4ckernews@mastodon.social · 2 months ago

Voyager 1 Is About to Reach One Light-Day from Earth

https://scienceclock.com/voyager-1-is-about-to-reach-one-light-day-from-earth/

#HackerNews #Voyager1 #SpaceExploration #LightYear #Astronomy #NASA #ScienceNews

Hacker News

@h4ckernews@mastodon.social · 2 months ago

The twin probes just launched toward Mars have an Easter egg on board

https://arstechnica.com/space/2025/11/the-twin-probes-just-launched-toward-mars-have-an-easter-egg-on-board/

#HackerNews #twinprobes #Mars #Easteregg #spaceexploration #arstechnica #NASA

Hacker News

@h4ckernews@mastodon.social · 2 months ago

Voyager 1 is a light-day away by November 2026

https://www.iflscience.com/on-november-13-2026-voyager-will-reach-one-full-light-day-away-from-earth-81432

#HackerNews #Voyager1 #LightDay #SpaceExploration #NASA #ScienceNews

Box464 boosted

Almir Almie Naudé

@almiralmienaude@mastodon.social · 2 months ago

Sharing some views of yesterday's #Aurora show over most of North America. Nature never ceases to amaze.

This video in particular was taken in #Missouri

#AuroraBorealis #NorthernLights #GeomagneticStorm #Storm #Space #SpaceExploration #NASA #ESA

Almir Almie Naudé

@almiralmienaude@mastodon.social · 2 months ago

Sharing some views of yesterday's #Aurora show over most of North America. Nature never ceases to amaze.

This video in particular was taken in #Missouri

#AuroraBorealis #NorthernLights #GeomagneticStorm #Storm #Space #SpaceExploration #NASA #ESA

Hacker News

@h4ckernews@mastodon.social · 2 months ago

FAA restricts commercial rocket launches indefinitely due to air traffic risks

https://www.space.com/space-exploration/launches-spacecraft/faa-restricts-commercial-rocket-launches-indefinitely-due-to-air-traffic-risks-from-government-shutdown

#HackerNews #FAA #Restrictions #Commercial #Rockets #AirTraffic #Risks #SpaceExploration

Hacker News

@h4ckernews@mastodon.social · 3 months ago

ISS in Real Time – 25 Years Aboard the International Space Station

https://issinrealtime.org

#HackerNews #ISS #25Years #InternationalSpaceStation #RealTime #SpaceExploration #NASA

Hacker News

@h4ckernews@mastodon.social · 3 months ago

Unexpected patterns in historical astronomical observations

https://www.su.se/english/news/unexpected-patterns-in-historical-astronomical-observations-1.855042

#HackerNews #UnexpectedPatterns #HistoricalAstronomy #AstronomyResearch #DataScience #SpaceExploration