Prof Heino Falcke

@hfalcke

Prof. Astrophysics, columnist D/NL, bestseller author “Licht im Dunkeln/Light in the Darkness/Licht in de duisternis” about the first ever image of a black hole […] 🌉 bridged from ⁂ follow @ap.brid.gy to interact

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Prof Heino Falcke@hfalcke· 9d

Angekommen. We arrived. 2700 km. 6 years. A "moving" arrival in every sense of the word. #caminodesantiago #Camino2026 #jakobsweg #santiago #santiagodecompostela

We arrived in Santiago: A smiling couple poses for a selfie in front of a grand, ornate building with tall spires, suggesting a historical or religious site. The sky is clear and blue.

A grand stone building with intricate architecture and multiple spires, silhouetted against a clear sky. The structure features ornate details and large windows, with scaffolding visible on one side. Santiago cathedral

A large, ornate church interior with golden decorations. People are visible in the foreground, taking pictures with their phones. A large incense burner is suspended from the ceiling, releasing smoke, creating a spiritual atmosphere.

Two hikers, a man and a woman, stand on a hilltop, admiring the view. They are facing a line of bronze statues representing historical figures, set against a backdrop of a colorful sunrise. The landscape includes trees and buildings in the distance

Prof Heino Falcke@hfalcke· 12d

Some impressions from the past days of our pilgrimage on the #caminodesantiago. Continuing where we left two years ago. We are twelve days further this year and now approaching Santiago. Only 66 km to go still - strikingly close, given that we started in Cologne six years ago.

Palas de Rei. A stone church building with a bell tower is featured. The architecture appears rustic, with a cross on the tower and another in front.

Castromaior. Castle from
4 BC in Galicia. The image depicts ancient stone ruins of a structure surrounded by dry grass and distant hills under a cloudy sky.

Church of Portomarin. A large stone building with a rose window and ornate entrance is visible in the foreground, surrounded by a plaza with people walking. To the left, a two-story building with green accents is seen. The sky is clear and blue.

Camino after Fonfria. A scenic landscape at sunrise, featuring rolling hills and valleys. The horizon displays soft hues of orange and pink, with a mist hovering over the lower areas. Fields are arranged in patches, interspersed with trees and winding roads.

Prof Heino Falcke@hfalcke· 24d

My new MyCamino GPS Slide Show App for MacOS is now available for beta testing! We actually had a lot of fun finally reliving our #Camino over 2300 km with 3000 pictures, 100 tracks and maps - watching four consecutive evenings (even together with parents and […] [Original post on mastodon.social]

A scenic view of a sunrise over a misty landscape with trees silhouetted against the golden sky. A map of the area shows a blue route, labeled with travel details, including total traveled distance and stage information.

Prof Heino Falcke@hfalcke· 26d

Was einem Physiker beim Blick auf einen romantischen Sonnenuntergang so alles in den Sinn kommt (und was das mit dem Klimawandel und Christian Lindner zu tun hat). Meine Sommerkolumne! #Kolumne #Koln #KStA #Langeoog

Prof Heino Falcke@hfalcke· 29d

Das war mal wieder eine richtig tolle Kombi: Planetarium und Kekskrümel - viele begeisterte Kinder (und Eltern und Großeltern). Und das Keksrümellied ist einfach sehr berührend - vor allem, wenn die Kinder in der Kuppel am Ende mitsingen. Da bekommt man noch […] [Original post on mastodon.social]

Prof Heino Falcke@hfalcke· Jul 17

Fedi-Friends mit neugierigen Kindern im Raum Stuttgart? Am Samstag lesen wir aus unserem Kekskrümel-Kinderbuch im Planetarium Stuttgart - mit Action 😉. Langweilig wird es bei der Reise in die Unendlichkeit nicht! (Es geht hier tatsächlich um unser erstes Buch).

Prof Heino Falcke@hfalcke· Jul 15

Here is a hobby experiment that escalated wildly. For our long #Camino tracks I wanted a slide show that understands stages, animates GPS tracks, synchronises my photos to it, and shows where they were taken. I also wanted to inspect and edit GPX tracks and […] [Original post on mastodon.social]

Prof Heino Falcke@hfalcke· Jul 4

Observed a bizarre physics effect in our hotel: My wife noticed an annoying humming noise. Turned out to be 50 Hz AC hum, which was very localised. It wasn’t audible any more half-way along the bed. So we slept with our heads towards the foot end. I did use […] [Original post on mastodon.social]

A spectrogram displaying sound frequency analysis, showing amplitude in decibels (dBFS) plotted against frequency in Hz. The visual features a blue waveform indicating various frequencies and amplitudes, peaking at -30 dB at 50 Hz.

A digital audio spectrum analyzer display showing a frequency spectrum from 0 to 2000 Hz. The amplitude is represented in dBFS, with a prominent low-frequency peak and several smaller peaks throughout the mid-range and high frequencies. Main peak is at -48 dB at 50 Hz.

Prof Heino Falcke@hfalcke· Jun 29

Am 1. Juli bin ich auf der Lit Potsdam im Gespräch mit Michael Köhlmeier und Dennis Scheck, am 17. Juli beim Faustmuseum in der Nähe von Karlsruhe. Falls ihr Zeit habt und in der Gegend seid … #litpotsdam

Prof Heino Falcke@hfalcke· Jun 27

Ein Lob an die Heide Bäckerei Meyer. Der Erdbeerkuchen ist wirklich lecker. Damit sitzt man wirklich 1. Klasse auf dem Boden 😉 (neuer Zug, Klimaanlage funktioniert, was will man mehr).

Prof Heino Falcke@hfalcke· Jun 27

Habe ich aus Koreas von unserem EHT Kollaborationstreffen mitgebracht (schaut mal auf die Augen😉). In Korea nie benutzt, im stehenden ICE ohne Klimaanlage Gold wert 🥵. #AntikeTechnikFunktioniert

Prof Heino Falcke@hfalcke· Jun 26

Bin gleich (19:35) live im RBB bei radioeins live - wir reden über mein Buch Zwischen Urknall und Apokalypse und die lit.potsdam

Prof Heino Falcke@hfalcke· Jun 25

Here the official conference photo from the 2026 Event Horizon Telescope Collaboration meeting at Yonsei University in Seoul - spot me, I do stand out in that crowd with the most gray hair😉. I can promise some really exciting news this year about black hole […] [Original post on mastodon.social]

Prof Heino Falcke@hfalcke· Jun 22

Exciting week ahead in Seoul for the annual Event Horizon Telescope collaboration Meeting, hosted by Yonsei University (started by Christian missionaries in the 19th century). It will be all about black hole imaging. Tuesday I give a public lecture. #astronomy #astrodon #blackholes

A banner for the Event Horizon Telescope Collaboration Meeting, scheduled in Seoul, Korea, from June 21-26, 2026. It features an artistic representation of a black hole against a starry background, along with a skyline that includes landmarks

The image features a black tote bag with an illustration of a swirling orange and yellow pattern, representing an astronomical concept, along with the text "Event Horizon Telescope" and organization names. Nearby, there is a decorative folding fan with an illustrated tiger with black hole eyes

A large stone monument inscribed with text in Korean and English, featuring the phrase "The Truth Will Make You Free" along with the biblical reference John 8:32. The stone is surrounded by green trees and grass.

Prof Heino Falcke@hfalcke· Jun 18

#Kusama #Köln #Cologne #MuseumLudwig

An immersive art space featuring walls and structures covered in a bold pattern of black and yellow dots. A person stands in the center, surrounded by the striking, fluid design. Mirrors enhance the visual experience.

A vibrant array of colorful spheres and circles in red, blue, green, yellow, and orange, reflecting off mirrored surfaces, creating a mesmerizing kaleidoscopic effect.

A colorful room with walls and ceiling decorated with vibrant, multicolored dots. It features a couch, coffee table, and various decorations including posters and a mirrored wardrobe. Soft lighting adds to the cozy atmosphere.

A large, colorful flower sculpture with red and white petals and a green stem is in the foreground, while the backdrop features the Gothic architecture of the Cologne cathedral with pointed spires under a blue sky with clouds.

Prof Heino Falcke@hfalcke· Jun 13

After a long and tedious ascent I finally made it to Monte Toodelöh - Cologne’s highest mountain at a whopping altitude of 118 m. #cologne

Prof Heino Falcke@hfalcke· Jun 9

Today at ESTEC, not for WAMS26, who have a much cooler poster admittedly, but we are talking about imaging black holes from space, which is not too bad either …

A modern building with a distinctive architectural design, surrounded by greenery, is visible alongside several flagpoles displaying various national flags. The sky is clear and blue, indicating a sunny day. ESTEC

A large sign welcoming visitors to WAMS26, featuring an astronaut standing on a red, Mars-like landscape. Logos for ESA and NASA are displayed prominently. The sky is clear blue.

Prof Heino Falcke@hfalcke· Jun 2

This weekend we went to Erfurt to present our book „Kekskrümel unter dem Himmelszelt - wie entstand die Erde“ about how the Earth was formed in the theatre. This was part of the children’s book week and we had a sold out crowd of many curious kids. Parents […] [Original post on mastodon.social]

A stage setup for a children's event, featuring a projector screen displaying an animated camping scene. Props include a blow-up mattress, plush toys, and grass elements. Banners promote the "Kinderbuchtage" event happening in 2026 in Erfurt.

A stage setting featuring a speaker in front of a large audience, mostly consisting of children and adults seated. Two promotional banners are visible on either side. The event appears to be a performance or presentation, with a table and equipment set up on stage.

A stage setup in a theater, featuring a wooden lectern with a stuffed mouse on top, a laptop displaying images, a camping tent, a blue mat, and several empty chairs in the audience area.

Prof Heino Falcke@hfalcke· May 7

Pff. My bagpack was stolen in the ICE train from Brussels to Cologne. They actually had a very similar looking business backpack and simply exchanged it while it was on the shelf above me. The conductors recognized this as a very standard trick these days. My […] [Original post on mastodon.social]

Prof Heino Falcke@hfalcke· May 1

Wie schön. Der zweite Band unserer Kekskrümel-Reihe ist zum Kinder- und Jugendhörbuch des Monats gekürt worden 😊 (und nimmt damit Teil an der Wahl zum Kinderhörbuch des Jahres). #bucher #kinderbuch #wisskomm #KinderbuchdesMonats

Prof Heino Falcke@hfalcke· Apr 29

Today in Solorhurn, where I will read from both of my books: for kids (crumbles under the sky) and for adults (big bang and apocalypse).

Prof Heino Falcke@hfalcke· Apr 28

A stopover in Olten, Switzerland. There’s something magical in the air. My train from Cologne to Basel was right on time 🤔

A sign on a stone wall displaying "Gleis 8" and "Gleis 9 ¾".

Prof Heino Falcke@hfalcke· Apr 5

Er ist wahrhaftig auferstanden. Hij is opgestaan. He is risen. Easter is and remains the most emotional and most inspiring of all holidays for me. Frohe Ostern. Zalig Pasen. Happy Easter.

A wooden cross stands in front of a stained glass window in a light-colored room. The window features an ornate design with geometric patterns and colors. Photo from my protestant church in Frechen/Germany.

Prof Heino Falcke@hfalcke· Mar 31

Advertisement for the Dutch translation of my book "Between Big Bang and Apocalypse" is just out. Apparently it will appear in September.

Prof Heino Falcke@hfalcke· Mar 27

Heute war ich als Gast bei 3nach9 bei Radio Bremen. Es waren tolle, nachdenkliche Gespräche. Natürlich wurde ich direkt über Meteoriten gefragt (ich dank @cosmos4u war ich gut vorbereitet). Lasst euch überraschen und schaut es euch an.

A television screen displays a stage set for a discussion or interview. The setting features four orange chairs arranged around a floral centerpiece, with a seated audience visible in the background. The lighting is dim, creating a cozy atmosphere.

Johannes Oerding, Heino Falcke und Pierre Litbarski

A lively studio scene with a diverse crowd engaged in conversation, seated in modern chairs. The background features a well-lit stage setup with multiple broadcasting lights and brick walls. Some guests appear to be networking or preparing for an event.

An inviting lounge area featuring four orange armchairs arranged around a circular coffee table. The table holds several glasses, vases with colorful flowers, and a microphone. In the background, people are gathered, engaged in conversation.

Prof Heino Falcke@hfalcke· Mar 21

Can’t complain about the company for my books here at the Leipzig book fair 😅 (Signed a few copies at the booth of my publisher) #Leipzig #leipzigerbuchmesse #Hawking #klettcotta

A display of books on shelves featuring titles by Stephen Hawking and Heino Falcke, including "Illustrated Brief Answers to the Big Questions" and "Licht im Dunkeln." The books are arranged neatly, with some titles prominently labeled with red.

The image shows a table with stacked books, prominently featuring "Zwischen Urknall und Apokalypse" by Heino Falcke. There is a visible sign indicating that the books are signed copies. In the background, several people can be seen

Prof Heino Falcke@hfalcke· Mar 21

Heute mal auf der Buchmesse Leipzig mit zwei Lesungen unseres Kinderbuches: um 12:00 (Lesebude) und 14:45 (Hugendubel) in Halle 3 #Leipzig #buchmesse #Kekskrümel

Prof Heino Falcke@hfalcke· Mar 14

Bürokratie ist wie ein Schwarzes Loch: sie kann nur zunehmen. Digitalisierung und KI werden uns von dem Fluch erlösen? Träum weiter … Meine erstaunlich populäre Kolumne jetzt auch auf Deutsch im Kölner Stadt-Anzeiger (Das Thema scheint wohl den einen oder […] [Original post on mastodon.social]

An article titled "Die schwarzen Löcher sind unter uns"

Prof Heino Falcke@hfalcke· Mar 10

Heute hatten wir Buchpremiere unseres neuen Kinderbuches „Kekskrümel unter dem Hinmelszelt - wie entstand die Erde“ bei der Lit.KidCologne in Köln. Eine volle Volksbühne (das alte Millowitsch-Theater) mit gespannt zuhörenden Kids ist für einen Kölner doch mal […] [Original post on mastodon.social]

A performance scene in a theater with an audience of children watching. On stage, two performers are seated in front of a large screen displaying a whimsical image of space with a cup and a mouse. The venue features decorative artwork on the ceiling and is illuminated.

A stage set for an event featuring two brown chairs, a small table with items, and colorful visual displays. The backdrop showcases a book cover titled "Kekskrümel unterm Himmelszelt," along with a promotional banner.

Prof Heino Falcke@hfalcke· Feb 13

Just arrived: The Chinese version of our bestselling children’s book „Cookie Crumbles in Space/Kekskrümel im All“ - admittedly I haven‘t proof read it yet… After German and Dutch, this is now the third language. I hope kids like it there!