De mora luminis: Roemer’s discovery 350 years later De mora luminis: Roemer’s discovery 350 years later, Falchi, Fabio, Furgoni, Riccardo, Gattillo, Paolo, Francesio, Maurizio

De mora luminis: Roemer's discovery 350 years later.

On European Journal of Physics a new paper on the measurement of the speed of light:

iopscience.iop.org/article/10.1...

#HistSci #HistAst #AstronomyHistory #HistoryOfScience

De mora luminis: Roemer’s discovery 350 years later De mora luminis: Roemer’s discovery 350 years later, Falchi, Fabio, Furgoni, Riccardo, Gattillo, Paolo, Francesio, Maurizio

By Fabio Falchi:

De mora luminis: Roemer's discovery 350 years later.

"Today in European Journal of Physics a new paper on the measurement of the speed of light"

iopscience.iop.org/article/10.1...

#HistSci #HistAst #AstronomyHistory #HistoryOfScience

The medieval Oxford friar who worked out the makeup of planets and stars Richard Fishacre used his knowledge of light and colour to argue against ‘fifth element’ theories of the day About 800 years ago, Richard Fishacre, a Dominican friar at the University of Oxford, challenged...

The medieval Oxford friar who worked out the makeup of planets and stars #Science #Space #Astronomy #MedievalScience #AstronomyHistory #OxfordFriar

Thomas Harriot: Renaissance astronomer, navigator & mathematician – Bath Royal Literary and Scientific Institution Thomas Harriot was not only the first in England to be documented as pointing a telescope at the night sky and draw the Moon (just before Galileo in Venice), but was also a navigator who had sailed to North America to set up the first English colony at Roanoke Island, had learnt the Carolina Algonquian language and had written a book about what he found: A Briefe and True Report of the New Found Land of Virginia. When a portion of court intrigue and Harriot’s connections with other key Elizabethan and Jacobean figures is added in, the result is a story which needs to be told. Tony Symes is keen, as an enthusiastic amateur, to talk about this all too often forgotten scientist and reveal the background against which he was operating. Anthony Symes CEng is a committee member of the Herschel Society and chairs the Programme Subcommittee at the BRLSI.  He graduated in Physics at the University of Sussex and worked in IT, mainly on supervisory control systems.

🔭 Thomas Harriot: Renaissance Astronomer, Navigator & Mathematician

Ahead of his talk on 5 Dec 2025, Tony Symes shares why Thomas Harriot deserves far more recognition.
📖 Full Q&A + tickets... www.brlsi.org/whatso...

#ThomasHarriot #RenaissanceScience #HistoryOfScience #AstronomyHistory

Study: How the Maya created such accurate eclipse tables Astronomical events such as eclipses were central to Maya culture, reflected in the care the Maya took to keep accurate calendars to aid in celestial predictions. Among the few surviving Maya texts is...

Study: How the Maya created such accurate eclipse tables #Science #Space #Astronomy #MayaEclipse #AstronomyHistory #AncientCivilizations

Did Astronomers Photograph UFOs Orbiting Earth in the 1950s? New peer-reviewed research reporting strange lights in the pre-space-age sky is sparking curiosity and controversy

Did Astronomers Photograph UFOs Orbiting Earth in the 1950s? #Science #Space #Astronomy #UFOs #AstronomyHistory #SpaceExploration

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🌑 On this day in 1780, Samuel Williams led the first American astronomical expedition to observe a solar eclipse!

Feathers fluffed in appreciation for space pioneers!
#CoastTV #TidalHealth #OnThisDay #SolarEclipse #AstronomyHistory

Arab Scholars May Have Noted the Supernovae of 1006 and 1181 It’s great to see old astronomical observations come to light. Not only can these confirm or refute what’s known about historic astronomical events, but they can describe what early observers actually...

Arab Scholars May Have Noted the Supernovae of 1006 and 1181 #Science #Space #Astronomy #Supernovae #AstronomyHistory #ArabScholars

Original post on mastodon.cosmicnation.co

🌟🔭 Honoring a pioneer! Annie Walker, who began working at Cambridge Observatory in 1879 at age 15, was the UK’s first professional female astronomer, observing thousands of stars. Help find her photo to celebrate her legacy!

@goodnews

#GoodNews #AnnieWalker #WomenInScience #AstronomyHistory […]

Nancy Grace Roman’s 100th Birthday NASA Dr. Nancy Grace Roman, NASA’s first Chief of Astronomy and namesake of the Nancy Grace Roman Telescope, briefs astronaut Edwin “Buzz” Aldrin on celestial objects in 1965 in Washington, D.C....

Nancy Grace Roman’s 100th Birthday #Science #ScienceHistory hashtag 1: #NancyGraceRoman 2: #WomenInScience 3: #AstronomyHistory

Cecilia Payne, born in England, got her PhD in the U.S., showing the then controversial result that the vast majority of each star is composed of the simplest elements hydrogen and helium. This contradicted the widely held notion that the Sun and the Earth should have roughly the same composition. As a woman, she was not allowed to hold a professorship at Harvard for many year during her long career there.

Today is the birthday (in 1900) of Cecilia Payne, the astronomer who wrote what some historians call the most important PhD thesis in astronomy -- showing that stars were made mostly of hydrogen and helium.
#astronomy #astroedu #astronomyhistory #historyofscience #womenastronomers #womeninscience

A stunning nighttime view from the Space Shuttle Columbia's payload bay in 1990. The ultraviolet and x-ray telescopes (UIT, HUT, WUPPE, and BBXRT) are illuminated by moonlight against the backdrop of the Orion constellation. The image showcases the groundbreaking astronomy conducted from space.

Astronomy Picture from 03/12/2005

Astro 1 In Orbit

Source: https://apod.nasa.gov/apod/ap051203.html


#SpaceShuttleColumbia #UIT #HUT #WUPPE #BBXRT #OrionConstellation #UltravioletAstronomy #XrayAstronomy #SpaceTelescopes #AstronomyHistory #NASA #SpaceExploration #1990sSpace #MoonlightInSpace

How Edwin Hubble Proved the Universe Is Bigger Than We Thought A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of many galaxies in an ever-expanding cosmos. This breakthrough led to the discovery...

How Edwin Hubble Proved the Universe Is Bigger Than We Thought #Science #Space #Astronomy #EdwinHubble #UniverseExpansion #AstronomyHistory

First Photograph (Daguerreotype) of the Moon 🌕 by John W. Draper. Taken on March 26, 1840 from the rooftop observatory at New York University. #Lunar #Astrophotography #Moon #LunarPhotography #History #AstronomyHistory

Telescope designer Thomas Bird was blind. Find out the amazing history of this bizarre telescope design:

youtu.be/PYgjP2kKcSA

#TelescopeScience #AstronomyHistory #SpaceExploration #TelescopeTechnology #HistoryOfScience #Stargazing #Astrophysics #ScientificDiscovery #CosmicJourney #SkyWatchers

Vera Rubin in 1991 (Photo by Andrew Fraknoi)

#Nvidia announced they'll be naming an advanced chip for doing AI after astronomer #VeraRubin, whose work led to our understanding that a major part of the universe is made of #darkmatter, whose nature we don't understand.
#astronomy #astroedu #womeninastronomy #space #astronomyhistory #scientists

A close-up shot of the corroded Antikythera mechanism, an ancient Greek astronomical calculator. The image shows the fragmented bronze device with visible gears and wheels. The greenish-grey patina of corrosion covers the artifact. The mechanism is displayed in a clear acrylic case.

Astronomy Picture from 09/01/2011

The Antikythera Mechanism

Source: https://apod.nasa.gov/apod/ap110109.html


#AntikytheraMechanism #AncientGreekTech #AstronomyHistory #MechanicalComputer #Orrery #AncientScience #UnderwaterDiscovery #XrayReveal #GearsAndWheels #LostTechnology

How Jocelyn Bell once made a discovery that changed the field of astronomy In 1967 Jocelyn Bell Burnell made a discovery that revolutionized the field of astronomy. She detected the radio signals emitted by certain dying stars called pulsars. This encore episode: Jocelyn's story....

How Jocelyn Bell once made a discovery that changed the field of astronomy #Science #Space #Astronomy #JocelynBellBurnell #AstronomyHistory #ScienceDiscovery

Did you know Giovanni Battista Lauri, born in Perugia (1579-1629), bridged philosophy and astronomy in a transformative era of scientific inquiry? His work echoes the Renaissance spirit of integrating cosmology with thought. #RenaissancePhilosopher #AstronomyHistory (Q110215173)

900 Years of Watching the Stars: A 12th-Century Fortress’s Cosmic Legacy While astronomers often set their sights on the stars, the landscapes surrounding their observatories can be just as awe-inspiring. Chile’s Atacama Desert, home to the world-renowned ALMA telescope,...

900 Years of Watching the Stars: A 12th-Century Fortress’s Cosmic Legacy #Science #Space #Astronomy #AstronomyHistory #CulturalHeritage #StarGazing

The Leviathan's Legacy: the story of the Birr Castle telescope

At one time, the biggest optical telescope in the world was located in Ireland. It can still be visited today, but is no longer functional. I think there is a radio telescope there now. #Astronomy #History #Ireland #AstronomyHistory

Logo of the Astronomical Society of the Pacific

Happy 136th birthday to the Astronomical Society of the Pacific, founded Feb 7, 1889. Link to their long and fascinating history: astrosociety.org/who-we-are/a...

#astroedu #astronomy #astronomyhistory #science #nonprofits #astrosocietypac #astrohistory #sciencehistory #Californiahistory

100 years ago: Edwin Hubble proved the Milky Way is not the only galaxy in the universe In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger cosmos.

100 years ago: Edwin Hubble proved the Milky Way is not the only galaxy in the universe: In early 1920s astronomy, most researchers believed our Milky Way was the entire universe.

#EdwinHubble #AstronomyHistory #MilkyWay #GalacticDiscovery #SpaceScience #EarthDotCom #EarthSnap #Earth

The Star That Proved the Universe Is Bigger Than We Imagined Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a cosmic puzzle. The night sky was dotted with more than 100 nebulous objects cataloged...

The Star That Proved the Universe Is Bigger Than We Imagined #Science #Space #Astronomy #StellarDiscovery #Galaxies #AstronomyHistory

Andrew Fraknoi and Vera Rubin in 1992

Scientists from the #VeraCRubinObservatory had a press conference today, previewing the telescope, ready to start in late 2025 making a huge movie of the whole sky. Pic: Vera Rubin with me, when she was on the Board of the Astronomical Society of the Pacific.
#astronomy #astroedu #astronomyhistory