Here are all the missions that face cancellation as part of a devastating 47% cut to NASA's science program. www.planetary.org/articles/bil...

Drone show over Boston Harbor for the 250th anniversary of Paul Revere’s ride. I’m sure just as he’d have expected.

Eye to the sky…on-sky engineering tests have begun at NSF–DOE Rubin Observatory using the world’s largest digital camera! 🔭🧪 After installing and testing the LSST Camera, we turned the telescope to the sky—a moment 20 years in the making! With that, Rubin #CommissioningNotes are back ✍️ 🧵

Success! IWitnessed the Mayan serpent god Kukulkan’s #equinox appearance at Chichen Itza! On the equinoxes, the stepped pyramid’s corner casts a shadow from the setting sun onto the staircase, making a diamondback snake whose head is illuminated at the bottom. #astronomy

LLMs continue to disappoint me. Have a look at this swing and a miss from what should be in a LLM wheelhouse.

Jupiter rotation timelapse with lo (and shadow) transit! Taken Feb 8th from my backyard. Went out at 5 min intervals to capture a video. From each of these, the best 10% were stacked to produce a single frame (lucky imaging). 🔭C9.25, 📷 QHYII1585C #jupiter #astrophotography #astronomy

Trying to keep calm knowing that this federal funding move blatantly violates the Impoundment Control Act and will be challenged quickly (www.stevevladeck.com/p/120-the-im...). But it's clear that the Velociraptors are out of the cage and are currently testing the limits of the enclosure.

I just got proofs back from ApJ and I'm deeply disturbed by how a copy editor thought this was a valid correction. Am I crazy? Is there ever a valid reason to use "consensual" in this way? What is a "consensual picture"?!

Here's a fun backstory to a paper too many years in the making: "Sporadic Dips from Extended Debris Transiting the Metal-Rich White Dwarf SBSS 1232+563" (arxiv.org/abs/2501.02050) which just hit the arxiv.

A story we ❤️about how exploring the Universe can re-ignite passion. And we don't mind that it's about looking at our white dwarf spectra in @jjhermes.bsky.social group 🤩🔭 www.bu.edu/articles/202...

Updated periodic table with origin of elements in the Solar System (for boron and lithium at least)