Another excellent episode of Starfleet Academy this week. I love it when Trek collides with Trek. 🖖

News from the edge of the visible universe: JWST has confirmed this galaxy, MoM-z14, as the most distant one yet studied. We're seeing it as it was 13.5 billion years ago, 98% of the way back to the beginning of time. (MoM stands for "miracle or mirage.") 🧪🔭 science.nasa.gov/missions/web...

Here @tgreiving.bsky.social writes about how my favorite composer, John Williams, has the same thing for lunch every day. thelegacyofjohnwilliams.com/2026/02/05/m...

Slow motion of a tuning fork vibrating at 128 Hertz going into water.

WTF?!

Io from the Juno spacecraft on February 3, 2024. The night side can be seen in reflected light from Jupiter. The quality of this dataset is truly stunning.

Moon Tree.

You HAVE to watch this 55 second video. When the muscle of University sports marketing meets the expertise of space science. Features LPL's Ty Robinson and Kris Klein. youtu.be/fhxf4XpescY

I didn’t get the chance to post earlier but there were great sunspots today. 🔭

*taps mic* ahem May I interrupt the nonstop tidal wave of doom with a tidal wave of LAVA? They're as high as a skyscraper, ooze at the speed of a human sprinter, and are really, really hot. By me for @science.org, reported from the #RockyWorlds4 conference: 🔭🧪

Fully Moon, baby! 🔭

This is Tucker and he wants me to tell you that he thinks we should abolish ICE

The Moon tonight is very nearly full (99.3%). 🔭

“There’s no single answer that will solve all our future problems. There’s no magic bullet. Instead there are thousands of answers—at least. You can be one of them if you choose to be.” ― Octavia E. Butler, A Few Rules for Predicting the Future: An Essay

This trend is giving me life. College is cool, knowledge is great. The liberal arts is rad. Being well rounded is the GOAT. Fund all colleges and universities. We should be throwing money at them. Make it affordable for all. Let people take underwater basket weaving if they choose.

Never mind the jobs you had, tell me five classes you took in college. Geology of Arizona Marriage Cosmology Accounting Bowling

The Moon and Jupiter are close together in the sky right now. Here's how they looked (separately) in just now with my telescope. 🔭

If is dark and clear where you are right now go out to see the Moon near the planet Jupiter.

This week's Starfleet Academy was pretty good. 🖖

You may have seen pictures, but have you ever seen video of a gigantic jet #TLE from space? Astronaut Jeanette Epps captured this incredible sequence on July 20th, 2024 for the DTU/@science.esa.int Thor-Davis experiment. 🧪🔭 youtu.be/xN2J7_rOBJY Credit: ESA/NASA/J. Epps Processing: Simeon Schmauß

NASA's Juno spacecraft detected the largest volcanic hotspot ever seen in our solar system. It appeared on Jupiter's moon Io, it covers 100,000 square kilometers (bigger than Lake Superior), and it radiates 80 trillion watts of heat. 🧪🔭 www.jpl.nasa.gov/news/nasa-ju...

What does it feel like to drive along the rim of Jerezo crater on Mars? This animation using the Navcam images on the Perseverance rover will show you. www.youtube.com/watch?v=LO2G...

🚨 Deadline: 1 February 2026 🚨 Calling all undergrad + graduate students looking for summer research opportunities! Application deadline is quickly approaching for the 2026 summer student program at the NSF NRAO/GBO. #Astronomy #RadioAstronomy #REU #ResearchAssistantship #NRAO #GBO

I wrote this song on Saturday, recorded it yesterday and released it to you today in response to the state terror being visited on the city of Minneapolis. It’s dedicated to the people of Minneapolis, our innocent immigrant neighbors and in memory of Alex Pretti and Renee Good. Stay free

We uncovered decades of previously unknown all-sky radio data from the Big Ear telescope, collected during a much quieter radio-era with active interference cancellation. Here are the projects, receivers, and the methods used to record the data. #AreciboWow #RadioAstronomy

🌟 The February 2026 edition of The Evening Sky Map (PDF) is now available for download at skymaps.com/tesm/. The PDF features easy-to-use sky maps for the northern & southern hemispheres, and for the equatorial regions. Please share, and enjoy exploring the Universe! 🔭 #stargazing #space

Today’s sunrise.

Tonight is our first evening astronomy lab of the semester, so, naturally, we have clouds.

Maybe the galaxy isn’t silent. Maybe it’s just whispering on a private network we haven’t plugged into yet. And the most exciting part? We might have the technology to spot the blinking lights of their routers right now. 🧪 🔭 Learn more: laserseti.net/is-the-galax...

Here's a much more interesting type of ice (lower case) to read about. New findings on the thickness of the ice shell on Jupiter's moon Europa. (Spoiler alert: 15-18 miles) www.jpl.nasa.gov/news/nasas-j...

University of Bern: Streaks on Mercury Show: Mercury Is Not a “Dead Planet” mediarelations.unibe.ch/media_releas...

Today was the first day of the spring semester and my wonderful wife made me a cake. 😀

High clouds tonight but I was able to catch the Moon and Jupiter (with Europa). 🔭

Updated image of galaxies M82 (left) and M81 with more time and slightly cropped from before.

The killing of Alex Pretti is a heartbreaking tragedy. It should also be a wake-up call to every American, regardless of party, that many of our core values as a nation are increasingly under assault.

Just wow!

I don’t have anything funny or witty to offer as a balm for what we’re currently living through. But, what I do want you to know is that there is a human behind this account and humans behind this brand that are hurting with you. Sending hugs across the internet to everyone who needs one. 💜

Camera 3 is the place to watch right now: www.youtube.com/live/gXKuUyK...

Today is a good day for volcano watching. Here’s how Kīlauea looks this morning. Watch it here: www.youtube.com/live/tk0tfYD...

I love this movie!

2:19:47 AM on Tuesday, January 20, 2026, over the Coral Sea.

Scientists went to Iceland—which has volcanic features like those seen on Venus—to test how the VERITAS spacecraft’s instruments will do when studying the planet’s surface from orbit, explain researchers from @jhuapl.bsky.social #Smithsonian #NASAJPL + @dlr-en.bsky.social. eos.org/features/dis...

I suppose I will have to listen to this.

Climate scientists are also obsessed with Greenland, not because of the Mercator projection, but because the melting of the Greenland ice sheet is going to raise sea levels significantly, change ocean circulation, and be generally very bad for humanity.

We had a nice sunrise today.

This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again. www.nature.com/immersive/d4...

When did the number of known natural satellites for Jupiter rise from 95 to 97? Was that announced at the recent AAS meeting? #planetaryscience

Tonight, January 19th, the Aurora flared across the skies of Europe and North America, and in the Southern hemisphere. From Joshua tree, California a diffuse uneven red arch loomed above the Northern horizon. The Western portion was brighter and stable with only a feeble presence toward the East.

Through partnerships with the SETI Institute and Unistellar, the initiative mobilizes citizen scientists to generate valuable data on events like meteor showers and asteroids that professional observatories might miss. 🧪 🔭 Learn more: www.seti.org/news/from-th...