John Lewis

Solargraph showing the path of the sun with snow in the foreground and trees on the horizon in the mid distance.

1 week Solargraph in Hokkaido, Japan. I’ll try to set another up in this location for a year. This was made with an empty Fanta can, pinhole, ILFORD photographic paper and black tape. 🔭 ☀️ 🌞

#historyofastronomy

#astronomy

A cutaway view of the interiors of the Discovery, the spaceship from 2001.

For Sci-Fi Cutaway Saturday, Oliver Rennart's art for '2001: A Space Odyssey'

Black-and-white vintage photo of a woman in a plaid dress standing beside tall racks of electronic equipment, holding papers and adjusting a control knob on the front panel, surrounded by numerous dials, gauges, and switches. Carolyn B. Parker standing before a bank of testing instruments, taken at Wright Field, near Dayton, Ohio, ca 1945. courtesy Leslie Carolyn Edwards, appeared in Mickens, R. E., & Patterson, C. E. 2021, "Carolyn Beatrice Parker: A Life in Physics," History and Philosophy of Physics Newsletter, XV (College Park, MD: American Physical Society), 1, https://cdn.ymaws.com/nsbp.org/resource/resmgr/bhm-images/FHPP_Fall21.pdf

Carolyn Beatrice Parker (1917-1966)
#nuclearphysicist

BA Fisk 1938 #Physics
MA U Mich 1941 #Math
MS MIT 1953 Physics

WWII Dayton (part of Manhattan) project #scientist

1st African-American woman to earn Physics graduate degree

#WomeninSTEM #histsci #AfricanAmericanHistoryMonth #atomicphysics 🍎 🧪

The featured image shows four planets lined up behind the Sydney Opera House in Australia. The image was taken one morning in April 2022, just before sunrise. Please see the explanation for more detailed information.

🔭 Planet Parade over Sydney Opera House

Image Credit & Copyright: Prasun Agrawal

apod.nasa.gov/apod/ap26022...

After MN's US Atty Rosen attacked the accuracy of his figures, Chief Judge Schiltz double-checked his list of 96 violations of court orders in 74 cases in MN for January. The recount showed 97 violations in 66 cases. But there’s more ...
1/4

A nebula appears like a transparent bubble with a white edge, inside which are two hemispheres of orange clouds being blown out from the center, split by a dark vertical lane, giving the overall appearance of a see-through skull with a brain inside, as seen from above. A few stars appear with eight points, and small background galaxies can be seen around and through the outer bubble.

Astronomers are losing their minds over #NASAWebb’s latest images of the very brainy-looking nebula PMR 1. Its distinctive form is the result of a dying star expelling its outer layers: https://news.stsci.edu/4tVQccE 🔭 🧪

One thing I’m seeing is that AI appears to be perceived by many as an increasingly political topic, whereas a decade ago it was largely one of technology alone. Both statements of critique and praise for such systems are becoming seen as latently partisan, much like climate science experienced.

a cartoon lemur is dancing on a stage wearing a costume . ALT: a cartoon lemur is dancing on a stage wearing a costume .

me: realizes that for Julian dates, 0.5 is midnight 😬

*God bless Astropy and every JD utility that has made sure this wasn't a massive bug in my code*

It’s hard to overstate how much blood, sweat and time away from your family goes into the preparation and submission of grant proposals. All for a tiny chance of being selected and pushing the frontier of knowledge.

These actions were unconscionable and they will always have been unconscionable.

DOGE Bro’s Grant Review Process Was Literally Just Asking ChatGPT ‘Is This DEI?’

Federal grants that had been approved after a full application and review process were terminated by some random inexperienced DOGE bros based on whether ChatGPT could explain—in under 120 characters—that they were…

Investigating a Polluted White Dwarf JWST spectra illuminate the composition of the debris disk around GD 362, one of the most polluted white dwarfs known.

JWST spectra illuminate the composition of the debris disk around GD 362, one of the most polluted white dwarfs known. aasnova.org/2026/02/18/i... 🔭🧪 @ssi-org.bsky.social

Alt text 1 (1891): 1891 photograph of Jupiter taken by E.E. Barnard with the 36-inch refractor at Lick Observatory, Mount Hamilton, California. One of the earliest detailed ground-based views; south up. Public domain.

Alt text 2 (1950): 1950 photographs of Jupiter by M.L. Humason using the 200-inch Hale Telescope at Palomar Observatory. Among the sharpest black-and-white ground-based images before spacecraft; south up. Public domain. ```​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

In 1892 E.E. Barnard discovered Jupiter's 5th moon, Amalthea, the last moon found by eye through a telescope. Over the next 80 years photos were B&W, and improved only a little over the period.

1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory

OH MY GOD

Planetary Alignments and Planet Parades On most nights, weather permitting, you can spot at least one bright planet in the night sky. While two or three planets are commonly visible in the hours

Learn more from NASA (sadly not yet on @bsky.app !)

🖇️ science.nasa.gov/solar-system...

#astroedu

CosmicDS Planet Parade A planetary alignment is coming in February 2026. Learn what that is, why it happens, and how to view it from your location with this free educational, interactive resource.

See how and when to view the February Planet Parade from where ever you live! ("Official" date is Feb 25, but the planets are visible now (once it's dark/sunset!))

projects.cosmicds.cfa.harvard.edu/planet-parade/

#astroedu #astronomy 🔭 #planetaryscience #astrophotography

The billionaires' eugenics project: how Epstein infiltrated Harvard, muzzled the humanities and preached master-race science Edge - Jeffrey Epstein's favourite intellectual salon - was sold to me as a gathering of the world's finest minds, writes Virginia Heffernan. The files reveal it was something far darker: a decades-lo...

MUST READ:

The best synthesis I have seen so far of things I knew or had put together from various sources but had not really seen pulled together 🧪

Importantly, I don’t think these academics were an aberration. I think a lot of scientists would have entered these circles, given the option.

White House Withholds Funding for NASA Science Missions Despite Recent Budget Bill NASA has been forced to pause funds for Chandra X-Ray Observatory and other missions until further notice.

Well, FUCK. Here I was excited for my first grant as a faculty member…

“White House Withholds Funding for NASA Science Missions Despite Recent Budget Bill”

NASA has been forced to pause funds for Chandra X-Ray Observatory and other missions until further notice.

🔭🧪

gizmodo.com/white-house-...

A pink, postage-stamp-edged card with a dark brown border. At the top, it reads, "Send these to your cosmic crush!" Centered is a large white heart containing the text "Cosmic DS Valentine's Cards" in a stylized, red-and-black retro font. The bottom is decorated with pink line-art illustrations of clouds, planets, and stars.

A light pink Valentine’s Day card with "To:" and "From:" fields and the CosmicDS logo. In the center, a large white heart contains the text "You had me at" followed by "Redshift 2" in a bold, red-and-black stylized font. The phrase is a play on the astronomical term "redshift," relating to the expansion of the universe.

A light pink Valentine’s Day card featuring a large, five-pointed pink star in the center. The text reads "You're a" above the star, "Superstar" in a bold, retro font across the star, and "Our love is going through a massive expansion!" below it. The card includes "To:" and "From:" fields and the CosmicDS logo.

A Valentine’s Day card with a light pink background and a rounded dark red border. At the top left is a "To:" field, and at the bottom left is a "From:" field. The CosmicDS logo is in the top right. Centered text reads, "I've checked the stats, and we're," followed by a large white heart containing the words "100% A Match!" in bold, red-and-black 3D lettering.

Some stars are red 🌹, some stars are blue 💙, our love is expanding, and it’s all thanks to you!

Our CosmicDS Valentines are the perfect way to tell your favorite person they're a total superstar. Designs by Devika E. from CfASciEd ❤️

University of Bonn: Stellar Remnants Solve the Mystery of Missing Mass in Galaxy Clusters www.uni-bonn.de/en/news/026-...

This is a screenshot of a webpage from NASA on the Earth's changing magnetic field. In a section on why it's not responsible for climate change, one of the reasons is that air is not ferrous. It makes a joke, a pun, "air isn't ferrous. Ferrous? Say what? Bueller? Bueller?", make a play of a famous line from the classic movie "Ferris Bueller's Day Off". Cuz ferrous sounds like ferris.

love this!

a kitten looking at a laptop with the words " we do a little hacking " on the bottom ALT: a kitten looking at a laptop with the words " we do a little hacking " on the bottom

how did i not know that adding "-ai" to a google search removes the ai result box (as well as other annoying results)!

If you've ever wondered what Hubble and Webb were observing at any time, there's an easy way to find out! 👀

Space Telescope Live can show you what the telescopes are looking at now and what the next planned observation will be, all in one space (pun intended 😁): https://spacetelescopelive.org/

Defendant contacted police before freeway shooting Charles Glen Simmons, 53, of Dillard, is in the Douglas County Jail on $1 million bail after Thursday morning’s alleged crime spree. According to a press release from the Oregon

A white man in Dillard, Oregon was arrested for stopping people on the freeway to demand at gunpoint that they tell him if they were citizens. He shot and missed one + attempted to get another in his truck to bring to police. Before his spree, he called local PD to complain about "foreign" people.

Reminder about signal, devices with touch/face id etc.

Passcode/password everything

How to Film ICE Filming federal agents in public is legal, but avoiding a dangerous—even deadly—confrontation isn’t guaranteed. Here’s how to record ICE and CBP agents as safely as possible and have an impact.

Planning to film ICE? Wired has a guide for that: www.wired.com/story/how-to...