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SETI Institute

@setiinstitute.bsky.social
19K followers 406 following 3.2K posts

Our mission is to lead humanity’s quest to understand the origins and prevalence of life and intelligence in the universe and share that knowledge.

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SETI Institute @setiinstitute.bsky.social · 3h
Some planetary systems survive close stellar encounters. Others lose every planet. 🪐 Dr. Jeremy Webb explores the fate of planetary systems in stellar clusters with Dr. Moiya McTier on the SETI Institute podcast. Listen: sites.libsyn.com/462636/life-... 🧪 🔭
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SETI Institute @setiinstitute.bsky.social · 11h
These carefully planned encounters let spacecraft change speed and trajectory while using far less propellant, borrowing a little orbital energy from a planet to continue their journey across the solar system. Credit: ESA/Juice/JMC Learn more: www.esa.int/ESA_Multimed...
esa.int
Juice images Earth during Earth flyby
Juice images Earth during Earth flyby
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SETI Institute @setiinstitute.bsky.social · 11h
...it was designed primarily to observe the spacecraft and its instruments rather than conduct science. The Earth flyby gave Juice another gravitational boost on its long journey to Jupiter, where the spacecraft will study the giant planet and its icy moons.
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SETI Institute @setiinstitute.bsky.social · 11h
#PPOD: Earth fills the view as ESA’s Juice spacecraft looks back at our planet during a flyby on September 28, 2026. Africa and Madagascar are visible across the sunlit globe, while the Moon appears as a tiny point in the distance. One of Juice’s monitoring cameras captured the image... 🧪 🔭
Mostly black space, most of Earth visible at the top right of the image. Part of a spacecraft visible on the left.
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SETI Institute @setiinstitute.bsky.social · 06/10/2026
And there’s more Moon science coming this week: Thursday, Dr. Franck Marchis talks with Tyler on SETI Live about what this newly formed crater can reveal about how impacts modify the lunar surface. 🔭 Join us Thursday for SETI Live: youtube.com/live/awZUHUa...
youtube.com
A New Crater on the Moon: What a Fresh Impact Reveals About the Lunar Surface | #SETILive
A new crater on the Moon is helping scientists understand what happens when an object strikes the lunar surface—and how far the impact's effects can reach.Th...
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SETI Institute @setiinstitute.bsky.social · 06/10/2026
Dr. Tyler Powell and SETI Institute researcher Dr. Sofia Sheikh joined @scifri.bsky.social to talk lunar science, from a newly discovered impact crater to the search for microscopic technosignatures in lunar dust. 🎧 Listen: wnyc.org/browse/shows... 🧪 🔭 👩‍🔬
wnyc.org
Examining a new lunar crater + searching for signs of alien technology | WNYC
Scientists are learning more about a recent impact crater on the moon.
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SETI Institute @setiinstitute.bsky.social · 05/10/2026
The sun is a stellar nuclear reactor, firing radiation at Earth. Too many of those rays can be harmful, but recent studies suggest the right amount of sunlight benefits our health. It’s Skeptic Check: Sunny Daze on @bipisci.bsky.social Listen here: bigpicturescience.org/episodes/ske... 🧪 #podcast
Severe sunburn covering a woman's neck, shoulders, and upper back with V-shaped strap tan lines where a swimsuit or top blocked the sun.
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SETI Institute @setiinstitute.bsky.social · 05/10/2026
From its highly elliptical orbit, the spacecraft will observe the entire auroral oval for extended periods, helping scientists link changes in the aurora to activity across Earth’s magnetosphere and better understand the processes that drive space weather. Credit: ESA/Chinese Academy of Sciences
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SETI Institute @setiinstitute.bsky.social · 05/10/2026
...from Earth’s magnetosphere collide with gases in the upper atmosphere. Smile—short for Solar wind Magnetosphere Ionosphere Link Explorer—will study how Earth’s magnetic environment responds to the solar wind. Learn more: www.esa.int/ESA_Multimed...
esa.int
Smile’s first ultraviolet image shows auroral substorm
Smile’s first ultraviolet image shows auroral substorm
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SETI Institute @setiinstitute.bsky.social · 05/10/2026
#PPOD: ESA’s Smile mission has captured its first ultraviolet image of Earth’s northern aurora, revealing the glowing oval during an auroral substorm. Smile’s Ultraviolet Imager captured the image, observing ultraviolet light produced when energetic particles... 🧪 🔭
A square blue image, with a little over half of Earth taking up most of the image. Earth looks like how we see the Moon when it is waxing or waning at just over a half-Moon. Because this is an ultraviolet image, Earth does not appear in its usual colours, but is light blue with a white ring. This ring is about a third of the size of the face of Earth that we see, and is quite swirly, like clouds or dye being mixed with water. The background of the image is dark blue, with some tiny white dots: these are stars.
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SETI Institute @setiinstitute.bsky.social · 04/10/2026
🎧 Listen to the conversation with host Dr. Lauren Sgro: sites.libsyn.com/462636/not-p...
sites.libsyn.com
SETI Live: Not Planets, Not Stars: NASA Volunteers Doubled the Number of Known Brown Dwarfs
What happens when hundreds of thousands of volunteers team up with NASA to explore the sky? In the case of Backyard Worlds: Planet 9, thousands of new brown dwarfs. NASA citizen scientists have…
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SETI Institute @setiinstitute.bsky.social · 04/10/2026
In this episode of the SETI Live podcast, Dr. Adam Schneider explains how volunteers with NASA's Backyard Worlds: Planet 9 project contributed to the discovery of roughly 3,000 brown dwarfs — and why around 60 citizen scientists earned co-author credit on the research. 🧪 🔭 👩‍🔬 #podcast
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Reposted by SETI Institute
San Jose Astronomical Association @sjastronomy.bsky.social · 04/10/2026
🌑 Clear skies ahead? October's Dark Sky Window runs from October 4–12! With the Moon approaching its new phase on October 10, this is a great opportunity to observe faint celestial treasures like galaxies, nebulae, and star clusters without bright moonlight washing out the view. 🔭
The provided image is a star chart titled "Navigating the October Night Sky 2026," published by the Astronomical League. It is designed for observers in the middle northern latitudes to help locate prominent constellations, stars, and deep-sky objects during October 2026 (specifically around 9:00 p.m. in early October and 8:00 p.m. in late October).
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SETI Institute @setiinstitute.bsky.social · 04/10/2026
A new lunar crater is revealing how impacts reshape the Moon far beyond the point of collision! 🌕 Join @allplanets.bsky.social and Dr. Tyler M. Powell on Oct. 8 at 2:30 pm PDT for #SETILive. 🔴 youtube.com/live/awZUHUa... 🧪 🔭
SETI Live record button logo. Text: A new crater on the moon with Franck Marchis and Tyler Powell, Thursday, 8 October 2026, 2:30 pm PDT / 5:30 pm EDT. Background: Photo of a new crater taken by the Lunar Reconnaissance Orbiter showing a dark center and bright white ejecta field. Inset: Photos of Franck Marchis and Tyler Powell.
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
ICYMI: How do you know if a star ate its planets? Lithium can be destroyed inside stars, while beryllium survives longer — leaving astronomers a chemical clue that rocky worlds may have been swallowed. Anne Rathsam explains. 🧪 🔭 Watch the full episode: youtube.com/live/cIy5-Bd...
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
Not Just Aliens is the SETI Institute’s weekly series featuring scientists exploring astrobiology, heliophysics, planetary science, and more — expanding the search for life beyond Earth. And sometimes, we feature scientists looking for technosignatures!
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
Dr. Mace now works as a planetary astronomer for the Ring-Moon Systems Node of NASA's Planetary Data System – a long-term public archive of data returned from NASA's outer planetary missions, and from other flight and ground-based observations. Learn more: www.seti.org/people/mia-m...
seti.org
Mia Mace
Research Scientist
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
Dr. Mia Mace’s scientific research interests lie in numerical modeling of planetary ring systems, and her doctoral work focused on developing code to simulate and analyze the dynamics of charged dust grains in Saturn’s rings in response to questions about ring rain and spokes. 🧪 🔭 👩‍🔬 #NotJustAliens
Text: #notjustaliens. Mia Mace, Planetary Rings / Solar System Dynamics. Background: Starry night sky. Inset: Photo of Mia Mace.Text: Dr. Mia Mace’s scientific research interests lie in numerical modeling of planetary ring systems, and her doctoral work focused on developing code to simulate and analyze the dynamics of charged dust grains in Saturn’s rings in response to questions about ring rain and spokes.  Background: Starry night sky with graphics of a star and exoplanets in front of it.Text: Dr. Mace now works as a planetary astronomer for the Ring-Moon Systems Node of NASA's Planetary Data System – a long-term public archive of data returned from NASA's outer planetary missions, and from other flight and ground-based observations. Background: Starry night sky with graphics of a star and exoplanets.SETI Institute logo. Graphics: (top) Black hole. (bottom) radio telescope dishes at the Allen Telescope Array. Background: Starry night sky.
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
It will be reocrded and available on SVAL's YouTube channel a couple weekjs later.
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Reposted by SETI Institute
Quark @playquark.bsky.social · 02/10/2026
Sci-Fi movies make scientists. Seth Shostak (@setiinstitute.bsky.social) explains.
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
Donors at $100 and above will have their names laser-etched onto the film flying to lunar orbit aboard MARBLE. MARBLE is more than this one campaign. There's more ahead, and we're glad you're part of it. Are we alone? Let's go find out.
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SETI Institute @setiinstitute.bsky.social · 03/10/2026
🌎 We did it. Thanks to everyone who gave, shared, and cheered on Launch the Search. We surpassed our $50,000 public fundraising goal, and two supporters grew the match from $50,000 to $75,000 along the way—bringing the total to $123,913.24 for the SETI Institute and the MARBLE mission. 🧪 🔭
SETI Institute announcement celebrating $61,956.62 raised and matched for the Marble lunar project; white text on black with a partial moon, reading "We did it. Thank you." and saying Marble is one step closer to lunar orbit.
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SETI Institute @setiinstitute.bsky.social · 02/10/2026
SETI Institute volcanologist Dr. Kayla Iacovino joined NewsNation to discuss the potential impact of a Yellowstone super-eruption—an event so large its effects could be comparable to a major asteroid impact. 🧪 👩‍🔬 🌋 Watch: www.newsnationnow.com/video/yellow...
newsnationnow.com
Yellowstone super-eruption would be like asteroid impact: Scientist | Jesse Weber Live
What would happen if the largest volcanic system on the planet erupted today? That's the scenario explored in a recent article about the supervolcano beneath Yellowstone National Park. Dr. Kayla…
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SETI Institute @setiinstitute.bsky.social · 02/10/2026
...its surroundings. The collision disturbed material more than 120 kilometers away and created a roughly 7-kilometer-wide region where loosened lunar soil retains less heat at night. Credit: NASA Goddard/Intuitive Machines Learn more: science.nasa.gov/solar-system...
science.nasa.gov
NASA’s Moon Orbiter Spots New, ‘Once-in-Century’ Moon Crater - NASA Science
It started as a routine data-quality check. But as Robert Wagner, a scientist with NASA’s Lunar Reconnaissance Orbiter (LRO), scanned a giant Moon map on his
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SETI Institute @setiinstitute.bsky.social · 02/10/2026
At about 222 meters wide and 43 meters deep, it is the largest newly formed crater yet discovered in the solar system. NASA’s Lunar Reconnaissance Orbiter captured the region both before and after the impact, giving scientists a rare opportunity to study how a large crater forms and alters...
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SETI Institute @setiinstitute.bsky.social · 02/10/2026
#PPOD: A large new scar has appeared on the Moon. McGetchin crater formed sometime between April 11 and May 22, 2024, when an asteroid or comet roughly the size of a multi-story building slammed into the lunar surface. 🧪 🔭 🌕️
Fresh impact crater centered on a dark, heavily cratered lunar surface, with a bright radial ejecta blanket and streaks extending outward from the rim, indicating a relatively recent collision and surrounded by many smaller, older craters.
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SETI Institute @setiinstitute.bsky.social · 02/10/2026
We know planets are common. But we still haven't found another planet quite like Earth. On Oct. 7, @aussiastronomer.bsky.social explores the past, present, and future of our hunt for Earth 2.0 at the next Silicon Valley Astronomy Lecture. 🧪 🔭 👩‍🔬 #bayarea www.seti.org/events/the-s...
seti.org
The Search for Earth 2.0: Why We Think It Exists, and How We’re Going to Find it
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SETI Institute @setiinstitute.bsky.social · 01/10/2026
Together, the two landscapes show how Mars continues to change: ancient terrain records a long history of impacts, while shifting sand reveals the Martian wind's more recent work. Credit: NASA/JPL-Caltech/University of Arizona Learn more: www.uahirise.org/hipod/ESP_04...
uahirise.org
HiRISE | HiPOD: 24 Sep 2026
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SETI Institute @setiinstitute.bsky.social · 01/10/2026
...in the planet’s geologic history. The pale, rough terrain is peppered with small impact craters, showing that the surface has been exposed for a long time. Resting above it are younger, smoother dunes built from windblown sand.
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SETI Institute @setiinstitute.bsky.social · 01/10/2026
#PPOD: Dark dunes sweep across the floor of Schaeberle Crater in this HiRISE image from NASA’s Mars Reconnaissance Orbiter. Nearly 159 kilometers across, Schaeberle is a large impact crater in the southern hemisphere of Mars whose floor preserves evidence of very different periods... 🧪 🔭
Dark, rippled sand dunes filling irregular basins between pale, eroded rocky plateaus, with sharp dune crests and wind-scoured surface textures visible in high-contrast view taken by the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter.
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Quark @playquark.bsky.social · 01/10/2026
We asked Dr. Seth Shostak @setiinstitute.bsky.social what if aliens came for our music. His answer made sense: if they can get here, maybe culture is the only thing we have that they don't. Join us on Discord to keep the conversation going: [discord.gg/PSe93xNyP] #Aliens #SETI #AlienLife
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SETI Institute @setiinstitute.bsky.social · 01/10/2026
⭐ TODAY: Did this star eat its planets? A new technique can uncover evidence of stars swallowing rocky worlds. Lead author Anne Rathsam joins @goastromo.bsky.social on SETI Live to explain the cosmic detective work. 🧪 🔭 👩‍🔬 🕚 11 am PDT 📺 Watch live: youtube.com/live/cIy5-Bd...
SETI Live record button logo. Text: This star ate its planets with Moiya McTier and Anne Rathsam, Thursday 1 October 2026, 11:00 am PDT / 2:00 pm EDT. Background: Artist's impression of a star with a planet crashing into it. Inset: Photos of Moiya McTier and Anne Rathsam.
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SETI Institute @setiinstitute.bsky.social · 01/10/2026
Could we grow our own food on the Moon or Mars? 🌱 Tomorrow, SETI Institute's Dr. Agata Zupanska joins ScienceKind to explore the challenges of farming beyond Earth—including radiation, reduced gravity, and lunar and Martian regolith. 🧪 🔭 👩‍🔬 📅 Oct. 1, 9:30 am PDT buff.ly/hUgfO0B
sciencekind.com
https://www.sciencekind.com/t/sk-cutting-edge-farming-beyond-earth-the-real-challenges-of-growing-plants-on-the-moon-and-mars-by-agata-zupanska-october-1st-at-9-30-am-pacific-sign-up-here/2722/2
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Quark @playquark.bsky.social · 30/09/2026
Wednesday we do interviews!! This time we talked with Dr. Seth Shostak @setiinstitute.bsky.social and he made a point I keep thinking about. If we ever hear from anyone out there, they're probably machine intelligence, not biological life. What do you all think? Comment down below. #SETI #Aliens
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
How did we almost discover ET? 👽 Tomorrow at Astronomy on Tap SF, SETI Institute's Dr. Simon Steel presents “How We (Almost) Discovered ET,” alongside Stanford's John Franklin Crenshaw, who will discuss inflation and the multiverse. 🧪 🔭 📅 Sept. 30, 7–9 pm 🎟️ Free www.eventbrite.com/e/astronomy-...
eventbrite.com
Astronomy on Tap SF - September 2026
Local astronomers talking about stars, planets, and the universe at your neighborhood bar. No PhD required.
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
Give $100 or more, and we'll laser-etch your name onto a film carried aboard the spacecraft. Every gift is matched up to $50,000 — but only through tonight, September 30. Are we alone? Let's go find out. 🔗 #LaunchTheSearch: www.seti.org/projects/mar...
seti.org
Multidimensional Analysis and Remote-sensing of the Blue Living Earth (MARBLE)
To find life beyond Earth, we must learn to see our planet as if it were orbiting a distant star.
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
🌎 Today is the last day to launch the search. MARBLE is the SETI Institute's first space observatory. It will study Earth from lunar orbit and create the reference astronomers need to recognize a living planet around another star. 🧪 🔭
SETI Institute fundraising poster promoting its first space observatory with headline "Are we alone? Let's go find out," urging last-chance donations to add your name, noting gifts matched up to $50,000 through Sept 30, and featuring a "Launch the Search" call-to-action button.
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
Draper continued refining his technique, producing increasingly detailed images of the nebula over the next two years and helping usher in a new era of astronomical observation. Credit: Henry Draper/Harvard College Observatory Plate Collection Learn more: dasch.cfa.harvard.edu
dasch.cfa.harvard.edu
DASCH: Documentation
DASCH: Digital Access to a Sky Century @ Harvard A New Look at the Temporal Universe
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
...Draper exposed the plate for 50 minutes to record the bright central region surrounding the Trapezium. The image looks modest compared with modern views of Orion, and its brightest stars are dramatically overexposed, but photography gave astronomers a new way to record and study the night sky.
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
#PPOD: On September 30, 1880, American astronomer Henry Draper captured the first photograph of the Orion Nebula, marking an important milestone in the history of astrophotography. Using an 11-inch Alvan Clark refractor and the relatively new dry-plate photographic process... 🧪 🔭
Grainy black-and-white astronomical photo showing a glowing nebula with two bright cores amid diffuse gas, surrounded by several overexposed small point stars.
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
What can whales and dolphins teach us about intelligence in the universe? Bill Diamond talks with 2026 Drake Award recipient Dr. Lori Marino about animal intelligence, brain evolution, and what other minds on Earth might teach us about intelligence elsewhere. 🧪 🔭 👩‍🔬 #podcast 🎧 buff.ly/4WnrTI6
sites.libsyn.com
SETI Live: The Sounds of Intelligence: A Conversation with 2026 Drake Award Recipient Lori Marino
What does intelligence sound like? For decades, scientists studying whales and dolphins have uncovered remarkable evidence of sophisticated communication, social complexity, self-awareness, and…
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SETI Institute @setiinstitute.bsky.social · 30/09/2026
Would we recognize an extraterrestrial signal if we found one? Tomorrow, SETI Institute scientist Dr. Vishal Gajjar joins ScienceKind to explore the Great Radio Silence—and how AI could help expand the search for technosignatures. 🧪 🔭 📅 Sept. 30, 9:30 am PDT www.sciencekind.com/t/sk-cutting...
Promotional banner for "ScienceKind Talk: The Great Radio Silence in the Age of AI," showing a smiling man at left, event title and subtitle in the center-right, and ScienceKind and SETI Institute logos at the bottom right.
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SETI Institute @setiinstitute.bsky.social · 29/09/2026
PRESS RELEASE From viruses and genomes to habitable environments and the birthplaces of planets, three new postdoctoral fellows have joined the SETI Institute. 🧪 🔭 Welcome L. Felipe Benites, Genesis Berlanga, and Dingshan Deng! Learn about their research: www.seti.org/news/three-n...
SETI Institute logo. Background: Artist's impression of a rocky planet set amongst background stars with some technological design elements. Banner text: SETI Institute Welcomes Three New Postdoctoral Fellows. Inset: Photos of L. Felipe Benites, Genesis Berlanga and Dingshan Deng.
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SETI Institute @setiinstitute.bsky.social · 29/09/2026
Learn more: www.esa.int/ESA_Multimed...
esa.int
Earth from Space: Venetian Lagoon
This image of the Venetian Lagoon in northern Italy was acquired by the IRIDE satellites on 17 May 2026.
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SETI Institute @setiinstitute.bsky.social · 29/09/2026
Narrow barrier islands separate the lagoon from the Adriatic Sea, with only a few inlets allowing water to flow between them. Satellite observations can track changes in water, sediment, vegetation, and coastlines over time, helping scientists study this complex environment. Credit: IRIDE/ESA
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SETI Institute @setiinstitute.bsky.social · 29/09/2026
#PPOD: The Venetian Lagoon spreads across Italy’s Adriatic coast in this striking satellite view, with the historic city of Venice visible among the islands and waterways. Bright turquoise patterns reveal sediment suspended in the shallow water, tracing currents and tidal channels in the lagoon. 🧪
Aerial satellite view of Venice and its lagoon, showing the dense red‑roofed island city crisscrossed by the S‑shaped Grand Canal, nearby islands and marshes, the causeway to the mainland, and turquoise waters streaked with boat wakes.
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SETI Institute @setiinstitute.bsky.social · 28/09/2026
Give $100 or more, and your name is laser-etched onto the film carried aboard the spacecraft. Every gift is matched, dollar for dollar, up to $50,000. Are we alone? Let's go find out. #LaunchTheSearch at www.seti.org/projects/mar...
seti.org
Multidimensional Analysis and Remote-sensing of the Blue Living Earth (MARBLE)
To find life beyond Earth, we must learn to see our planet as if it were orbiting a distant star.
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SETI Institute @setiinstitute.bsky.social · 28/09/2026
🌏️ Only 2 days left to help Launch the Search! MARBLE is the SETI Institute's own science payload — our instrument, our questions. It flies to lunar orbit and looks back at the whole disk of Earth, measuring our own living planet the way we'll one day measure another. 🧪 🔭
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SETI Institute @setiinstitute.bsky.social · 28/09/2026
From this remarkable landscape, astronomers use some of Earth’s most advanced telescopes to study everything from nearby worlds to distant galaxies. Credit: ESO/N. Schafer Learn more: www.eso.org/public/teles...
eso.org
https://www.eso.org/public/teles-instr/paranal-observatory/
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SETI Institute @setiinstitute.bsky.social · 28/09/2026
...that make the remote site such a powerful window on the universe. In the background sits the Paranal Technology Museum, housed inside an old train car—a small reminder of the generations of technology humans have developed to explore the cosmos.
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