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Corey S Powell

@coreyspowell@mastodon.social
mastodon 4.8.0-nightly.2026-10-06
  • Open on mastodon.social

Writer, editor, magazine maker, podcaster, procrastinator.

Former editor of Discover and American Scientist magazines. Co-host of #ScienceRules podcast. Invisible Universe on Substack: https://invisibleuniverse.substack.com/

Co-founder of OpenMind magazine.

#science #nature #space #scicomm

8537 Followers
426 Following
50 Posts
Joined April 26, 2022
Bluesky:
https://bsky.app/profile/coreyspowell.bsky.social
OpenMind:
https://www.openmindmag.org
Substack:
https://substack.com/@coreyspowell
Open post
Corey S Powell @coreyspowell@mastodon.social
· 1d ago
Boosted by @trending@homestead.social
The Nobel Prize in physics goes to Francis Halzen, who figured out how to turn a cubic kilometer of Antarctic ice into an enormous neutrino detector. The resulting IceCube experiment is now studying extreme events across the universe. Remarkable, mind-expanding research. https://www.nobelprize.org/prizes/physics/2026/press-release/ #science #tech #nature #Nobel
Nobel Prize in Physics 2026
NobelPrize.org

Nobel Prize in Physics 2026

The Nobel Prize in Physics 2026 was awarded to Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.”

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Corey S Powell @coreyspowell@mastodon.social
· 1mo ago
I needed something spectacular, and here it is: a view of the August 12 solar eclipse as seen from South Korea's Danuri satellite, in orbit around the Moon. That's the limb of the Moon in the foreground, and the lunar shadow sweeping across Greenland. https://www.mt.co.kr/amp/tech/2026/08/13/2026081314245392530
mt.co.kr
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Corey S Powell @coreyspowell@mastodon.social
· 2mo ago
Very exciting! First clear detection of an atmosphere around an Earth-size planet in the habitable zone of another star. This is a big step forward in figuring out if "potentially habitable" planets are actually habitable & if red dwarf stars could sustain life. https://www.science.org/content/article/astronomers-spot-first-atmosphere-around-potentially-habitable-alien-world #space #science #nature #life
science.org
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
This story is amazing. Giant octopuses of the Cretaceous were up to 19 meters (60 feet) long. They were the apex ocean predators of their day, eating up plesiosaurs and mosasaurs. And they were apparently quite intelligent. Sorry we missed you! https://www.science.org/doi/10.1126/science.aea6285 #science #nature #history
science.org
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Open post
Corey S Powell @coreyspowell@mastodon.social
· 1mo ago
Boosted by @oxy@social.bsdlab.au
The historic first Earthrise photo from the Moon was received 60 years ago today. It was shot on film, developed onboard the Lunar Orbiter 1 spacecraft, scanned, transmitted home...and then meticulously restored decades later. https://www.lpi.usra.edu/features/lunarOrbiter/ #space #science #history #tech
lpi.usra.edu
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Corey S Powell @coreyspowell@mastodon.social
· 2mo ago
Replying to
The first color image from the surface of Mars was released a day later, July 21, 1976. It was *not* the one that NASA shows you today! Viking scientists were so surprised by the orange skies that they initially shifted the color calibration to make Mars look more Earthlike, before releasing a corrected version 5 days later. https://solarviews.com/history/SP-4212/ch11-4.html #science #nature #art
solarviews.com
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Corey S Powell @coreyspowell@mastodon.social
· 2mo ago
Replying to
We now know that interstellar clouds are full of water, alcohols, sugars, and esters. All the basic molecular components you need to make an Old Fashioned or a Margarita. https://www.jpl.nasa.gov/news/cheers-nasas-webb-finds-ethanol-other-icy-ingredients-for-worlds/ #astronomy #space #science #nature #culture
jpl.nasa.gov
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Corey S Powell @coreyspowell@mastodon.social
· 2mo ago

A rich fossil site in China is filling in the little-known transitional details of life before the Cambrian explosion.

It documents the emergence of bilateral symmetry & pushes back the origin of the ancestors of all modern vertebrates.

https://www.ox.ac.uk/news/2026-04-03-spectacular-fossil-treasure-trove-pushes-back-origins-complex-animals #science #nature #history

ox.ac.uk
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Corey S Powell @coreyspowell@mastodon.social
· 1mo ago
Boosted by @trending@homestead.social
The BepiColombo spacecraft just broke in two. In December, the remainder will split in two again. It's all part of the elaborate preparations for making the best-ever observations of the enigmatic planet Mercury. https://www.esa.int/Science_Exploration/Space_Science/BepiColombo/Latest_updates_BepiColombo_s_arrival_at_Mercury #space #science #tech
esa.int
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Corey S Powell @coreyspowell@mastodon.social
· 3mo ago
Boosted by @trending@homestead.social
NASA & Katalyst Space are attempting to rescue the Neil Gehrels Swift Observatory, a powerful gamma-ray telescope that's on a death-spiral toward Earth. A booster spacecraft, called Link, is now on its way. It will attempt to grab Swift & lift it to safety. If successful, the same technique could be applied to the Hubble telescope. https://spacenews.com/pegasus-launches-swift-reboost-mission/ #space #science #technology
spacenews.com
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago

Among Orbán's many corrosive effects in Hungary, he politically strangled universities and research funding. His defeat offers the possibility of a better, more open future for Hungarian science.

https://www.statnews.com/2025/09/02/hungary-us-science-universities-democracy-protests-freedom-knowledge/ #science #hungary

statnews.com
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Corey S Powell @coreyspowell@mastodon.social
· 3mo ago

For the first time, scientists have detected the wind from a black hole.

New images show the supermassive one at the center of our galaxy is puffing away, clearing out a void about 20 trillion miles wide.

https://www.almaobservatory.org/en/press-releases/alma-finally-catches-the-milky-ways-black-hole-breathing/ #space #science #astronomy

almaobservatory.org
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Corey S Powell @coreyspowell@mastodon.social
· 4mo ago

We live at an extraordinary moment in science history: We're the first generation able to see a meaningful map of the entire visible universe.

This view across billions of light years is based on JWST data, as part of the COSMOS-Web survey.

https://news.ucr.edu/articles/2026/05/11/astronomers-produce-most-detailed-map-cosmic-web #space #science #nature

Astronomers produce most detailed map of the cosmic web
News

Astronomers produce most detailed map of the cosmic web

International study used data from the James Webb Space Telescope

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Open post
Corey S Powell @coreyspowell@mastodon.social
· 2mo ago
Replying to
Useful tip for time travelers: You'd need to bring breathing equipment with you for 90% of Earth history. Oxygen levels sufficient for human life did not exist until the Devonian era, around 400 million years ago. #science #history #earth
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Corey S Powell @coreyspowell@mastodon.social
· 3mo ago
Replying to
Infrared images from JWST pierce the gloom & reveal Centaurus A's intricate inner workings: Streams of stars from two colliding galaxies. New stars forming from the wreckage. A black hole, 100 million times as massive as the Sun, shooting jets & disrupting its surroundings. https://esawebb.org/news/weic2615/ #space #science #nature #tech
esawebb.org
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Corey S Powell @coreyspowell@mastodon.social
· 4mo ago

Just look at this gorgeous portrait of celestial creation!

JWST trained its infrared vision on one tiny patch in the Orion Nebula. There, it saw a wild collage of collapsing clouds, protostars, jets, shockwaves, and dark disks where new planets are forming.

https://esawebb.org/images/potm2605a/ #space #science #art #nature

esawebb.org
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Corey S Powell @coreyspowell@mastodon.social
· 6mo ago

The Moon is a major destination, a complex world in its own right. It is larger than any of the dwarf planets of the solar system! (All shown to scale here.)

https://science.nasa.gov/moon/ #space #science #artemis #moon

Earth's Moon
NASA Science

Earth's Moon

The Moon makes Earth more livable, sets the rhythm of ocean tides, and keeps a record of our solar system's history. Explore NASA lunar science here.

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Corey S Powell @coreyspowell@mastodon.social
· 3mo ago

Somehow, planet WD 1856b survived the death of its star intact, and then migrated into a tight, stable orbit around the star's collapsed remains.

Astronomers have found that planets are remarkably resilient, forming & persisting in the most unlikely places.

https://science.nasa.gov/missions/webb/nasas-webb-studies-how-planet-survived-death-of-its-star/ #space #science #nature

science.nasa.gov
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Corey S Powell @coreyspowell@mastodon.social
· 2mo ago

The inner moons of Neptune look like they were turned inside out, with deep-interior minerals spattered across their surfaces.

Probably these moons are the shattered remains of earlier satellites that were shredded when a Pluto-like object came barreling in.

https://www.caltech.edu/about/news/neptunes-inner-moons-may-be-shattered-remains-of-ancient-icy-worlds #space #science #nature

caltech.edu
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Corey S Powell @coreyspowell@mastodon.social
· 6mo ago

Beautiful shot & beautiful metaphor. The "Man in the Moon" drifting off at right. The lunar farside coming into view at left. (Processing: Damian Peach)

From the evolution of the eye, ~500 million years ago, until October 7, 1959, no creature on Earth had ever seen the far side of the Moon. #space #science #artemis #technology

mastodon.social

Mastodon

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Open post
Corey S Powell @coreyspowell@mastodon.social
· 3mo ago
Replying to
There is so much happening in the heart of Centaurus A. Streams of millions of stars. A massive black hole (within the bright central dot) stirring up the gas and dust. Complex structures, puzzling, never seen before. A lot of cosmic mystery to untangle. https://esawebb.org/images/weic2615a/ #science #astronomy #nature
esawebb.org
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
Zoom in, and the Sombrero Galaxy looks like a starry hat. Switch to infrared vision (via JWST) and you can make most of the stars disappear, revealing the galaxy's unusually smooth, dusty ring -- less a hat than an enormous space Aerobie. https://esawebb.org/news/weic2427/ #space #science #astronomy
esawebb.org
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
From Earth, we can study the Sun only from the side. ESA's Solar Orbiter lets us look down from above, revealing another side of how the Sun works. This new image shows magnetic fields wrapped around the Sun's south pole, which help drive the 11-year solar cycle. https://www.mps.mpg.de/sun-first-glimpse-of-polar-magnetic-field-in-motion #space #science #astronomy #nature
mps.mpg.de
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
By chance, the object 2002 XV93 passed in front of a faint star. The star dimmed gradually rather than abruptly, indicating the presence of an atmosphere. One key set of observations came from an amateur astronomer with an 8" telescope! Full paper: https://arxiv.org/abs/2605.02243 #space #science #nature #tech
arxiv.org
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago

Thought for the day:

Earth is 10^30 times as dense as an averaged-out sample of the universe. That is, gravity has amplified the density of our planet by a factor of thousand billion billion billion. Without that amplification, we would not be here.

#space #science #nature #history

mastodon.social

Mastodon

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Open post
Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
What could we be getting wrong? Maybe we live in an atypical corner of the cosmos, giving us a misleading view. Maybe we're missing something fundamental about the early evolution of the universe. Either answer has huge implications. https://www.aanda.org/component/article?access=doi&doi=10.1051/0004-6361/202557993 #space #astronomy #science #nature
aanda.org
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Corey S Powell @coreyspowell@mastodon.social
· 6mo ago

It is astonishing that humans are able to do these things. This is what happens when we act collectively to solve extremely difficult technical problems. (It works with many other kinds of problems, too, by the way.)

You can follow Artemis II's encounter with the Moon starting at 1pm EDT.

https://plus.nasa.gov/ #space #science #tech #artemis

plus.nasa.gov
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Corey S Powell @coreyspowell@mastodon.social
· 3mo ago

David Hockney used his art to experiment with our perception of space and time. In 1994 he delivered a beautiful lecture at Caltech describing his process.

[PDF link]

https://calteches.library.caltech.edu/3762/1/Hockney.pdf #science #art #davidhockney

calteches.library.caltech.edu
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
In the 1950s, astronomers noticed a seasonal "wave of darkening" on Mars. Some interpreted it as springtime growth of plants. One prominent scientist reported that the "wave" appeared organic, similar to lichen on Earth. Alas...it was just more dust. https://www.centauri-dreams.org/2015/02/27/astrobiology-a-cautionary-tale/ #science #nature #history
centauri-dreams.org
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
Meanwhile, the European NELIOTA program is monitoring lunar impacts from Earth, and has already logged 207 confirmed strikes. https://neliota.astro.noa.gr/ #space #science #astronomy
neliota.astro.noa.gr
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
This is a map of Mars by the Association of Lunar and Planetary Observers, published in Sky & Telescope in 1954. The Space Age completely transformed our understanding of the solar system. https://www.alpo-astronomy.org/jbeish/Observing_Mars_4.html #science #history
alpo-astronomy.org
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
The Dark Energy Camera was not designed to take pretty pictures. It was built (as the name gives away!) to study the dark energy that is pushing our universe apart. And it found hints that dark energy may be changing over time, for reasons completely unknown. https://noirlab.edu/public/programs/ctio/victor-blanco-4m-telescope/decam/https://www.darkenergysurvey.org/the-des-project/instrument/the-camera/ #science #tech #technology
noirlab.edu
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
SR-1 will use bits of the "power and propulsion element" designed for the canceled Lunar Gateway. Primary development will be done in-house. Now let's get NASA's budget restored so it can carry out other great missions, including exploration of Venus & seeking habitable worlds. https://spacenews.com/nasa-to-test-nuclear-electric-propulsion-with-2028-mission-to-mars/ #nasa #artemis #tech #space
spacenews.com
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Corey S Powell @coreyspowell@mastodon.social
· 6mo ago
Replying to
Did you recognize our Moon? It's one of the new photos from Artemis II. References: https://science.nasa.gov/photojournal/charons-complexity/ https://www.flickr.com/photos/nasa2explore/55191470911/
science.nasa.gov
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
In case you're wondering, there's a strong selection effect that makes it difficult to observe meteorite strikes near the lunar poles.
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
Our instruments have improved, but wishful thinking remains a fixture of human behavior. That's why scientists tend to take every claim about "new evidence of alien life" with a massive dose of skepticism.
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Corey S Powell @coreyspowell@mastodon.social
· 4mo ago
Replying to
@MichaelPorter@ottawa.place @yacc143@mastodon.social True that! And strictly speaking, *all* maps are mosaics of old information collected at a variety of times.
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Corey S Powell @coreyspowell@mastodon.social
· 5mo ago
Replying to
@tsturm Yes, an enormous extended halo of stars. And if you look closely, there's also an even larger, angled streamer of stars around the galaxy (easiest to see at bottom right).
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