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Giant supercluster discovered hiding behind the Milky Way
Understanding the nature of our cosmos requires an accurate map of how galaxies are spread throughout it. For decades, astronomers suspected that something v...
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July 2026: Astro Letters
In the Ask Astro column of the April 2026 issue is a photograph of planetary nebula NGC 6302. The caption says that NGC 6302 lies about 3,800 light-years awa...
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No place like home
At the end of the classic 1939 film The Wizard of Oz, after defeating the Wicked Witch of the West, Dorothy Gale squeezes her eyes tightly shut, clicks the h...
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Uncovering the science of aurorae
The shimmering curtains of the northern and southern lights — aurora borealis and aurora australis, respectively — loom large in our imaginations. These shif...
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What does the term ‘supersonic’ mean in astronomy?
Occasionally I see references in Astronomy to the speed of something as “supersonic.” I’m having trouble reconciling this term with velocities typically foun...
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Could aliens ever visit Earth?
On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These ...
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Scientists used a method from ecology to identify whether icy moons could hold conditions for life
New observatories and spacecraft missions are probing environments in our solar system that could potentially host life but have long remained hidden. Icy mo...
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Can black holes turn into white holes? It's not such a crazy idea, scientists say
"We found that the lifetime of black holes is much longer than previously thought."
New research suggests that black holes born during the Big Ban...
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Aurora alert! 4 Earth-bound CMEs could spark northern lights as far south as Illinois and Oregon tonight
Heads up aurora chasers! We could be in for a show! Multiple CMEs are en route and could spark strong geomagnetic storm conditions and auroras deep into mid ...
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Meteorite found in Sahara desert may be 1st evidence of lost solar system world
"It points to a distinct and separate evolutionary path in planetary formation in the early history of our solar system."
A rare meteorite recover...
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Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty
"The results from 3I/ATLAS show how realistic it is to detect a signal with the technology we have today."
Sorry, true believers: It appears the i...
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'Silo' season 3 trailer teases showing us how the world ended (video)
'There’s a new world coming, and it's just around the bend.'
Apple TV has just unearthed a fresh trailer for "Silo" season 3, and i...
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A rainbow patchwork quilt shows agriculture from space | Space photo of the day for June 4, 2026
This satellite data is beautifully informative.
A rainbow blanket of patchwork colors sprawls across South Africa in this new composite image created using ...
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Asteroid Dirt is "Fluffier" Than We Thought
The strength of gravity is different on every body in the solar system. Whether it's the crushing weight of Jupiter or the miniscule pull of a small ast...
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Exoplanetary Weather Watchers Find Strong Evidence of Magnetic Fields
Astronomers studying wind speeds on distant exoplanets have discovered weather systems driven by magnetic fields, rather than the largely hydrodynamic weathe...
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Here's Why So Many Massive Galaxies in the Early Universe Stop Forming Stars
As our powerful telescopes have penetrated time's veil, astronomers have confronted a number of puzzling observations of the ancient Universe. Universe ...
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A New Map of Stars Shows That the Small Magellanic Cloud is Expanding
Our galactic neighbours are struggling to get along with one another. According to a new research letter to be published in Astronomy and Astrophysics, inter...
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A Brief-ish History of SETI. Part IX: What Have We Found?
Welcome to our final installment in the Brief-ish History of SETI. Throughout this series, we explored the humble origins of the Search for Extraterrestrial ...
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Cosmic Tryst: Venus Meets Jupiter at Dusk
Don’t miss the convergence of the two brightest planets at dusk in early June.
It’s a familiar annual question, that we’re already hearing as we enter into ...
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This Week's Sky at a Glance, May 29 – June 7
Venus and Jupiter grab your eyes in the west in late twilight. The Summer Triangle marks the dark in the east. So will the subtler Milky Way once the glary M...
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Evidence of Water Plumes from Jupiter's Moon Europa Vanishes
Reanalysis shows that the Hubble Space Telescope’s detection of water vapor escaping from Jupiter’s moon Europa might have been a glitch.
The putative vapor...
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NASA Brings Its Lunar Ambitions into Focus with Moon Base Missions
Rovers, drones, and landers will usher in a sustained lunar presence, under the new plan NASA announced this week.
Two months ago, NASA leadership scrapped ...
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June Podcast: Dance of the Planets
This month’s episode highlights the close pairing of Venus and Jupiter under way in the western sky after sunset. You'll also learn why astronomers are ...
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Mars MAVEN Mission Lost; NASA Says Farewell
NASA is working to restore communications with its MAVEN Mars Orbiter mission.
Update (June 3, 2026): The first mission devoted to observing the Martian atm...
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Venus, Jupiter Converge in Stunning June 9th Dusk Conjunction
A beautiful conjunction is coming, and all you need are your eyes to enjoy it.
Look west at dusk and be amazed! Two bright "stars" — Venus and Jup...
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Join ESA for a total solar eclipse on 12 August 2026
Follow the total solar eclipse with the European Space Agency (ESA), in person or online.
On 12 August 2026, a solar eclipse will be visible across parts o...
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ESA’s Prodex programme brings scientific research to space
The launch of the 4DSpace-Daedalus mission in Norway is the latest success supported by Prodex, a European Space Agency (ESA) programme which enables highly ...
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Webb reveals black hole that formed before its galaxy
Using the unprecedented imaging and spectroscopic power of the NASA/ESA/CSA James Webb Space Telescope, researchers have mapped the motion and composition of...
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Journey to the centre of a galaxy cluster
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Webb sniffs methane from interstellar Comet 3I/ATLAS
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Smile: cleanroom to space
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Autumn walk through the forest — 12 photos from today's hike 🍂 #Autumn #Hiking #Nature
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Architecture photography from the city centre — brutalism meets modern glass 🏙️ #Architecture #Photography
