Anicia Arredondo

That's a pretty sick stat

We should do an asteroid cup (like the mineral cup) every year to find out which asteroid is truly the MOST popular

a close up of a man holding a bottle of decorte liposome advanced ALT: a close up of a man holding a bottle of decorte liposome advanced

Very unserious

8 hours for work, 8 hours for sleep, 8 hours for baseball

Really feeling this tonight

If this were a weekend game I would be having the time of my life right now

This made me so uncomfortable 😂

If you've ever wanted an author to explain their entire paper, here is me explaining this entire paper. JWST spectroscopy of asteroid Polana and why I think the Polana family is the origin of NEA Bennu. #planetaryscience 🔭

Yep! Of the 4 that I submitted, 3 are resubmissions. Next cycle I will probably have more.

#JWST proposal deadline day. I am PI for 4 and Co-I on 7, that means at least one of them will get selected right? Right?? 🙃

The mirror's spherically aberrated

THIS IS SO PAINFUL. And I don't even like either of these teams

It was equally confusing on TV. He easily could have gotten the runner at 1st 🤷🏽

New #planetaryscience paper! #JWST spectra of (142) Polana, the parent body of the new Polana asteroid family. We compare Polana to Bennu and Ryugu to test hypotheses that both NEAs came from the new Polana family.
doi.org/10.3847/PSJ/...
🔭🧪

I'll be there. :)

Today is the deadline to submit an abstract for #GSAConnects2025
🧪🔭#PlanetaryScience

Please tell me you bought one of those trout shaped foam hats

New JWST proposal templates have a font size of 14 😂

July 29, 2025 marks 67 years to the day since the founding of NASA. NASA Spinoff—a section of the US space agency’s technology transfer program—compiles just about every commercial technology that has originated in US space research, from freeze-dried food to wireless vacuum cleaners.

I enjoyed reading this

Good news! The Lucy mission will fly by Eurybates in 2027 and will obtain spectra as the asteroid rotates as well as high-res spectra of part of the surface. Lucy already gave us amazing results when it flew by Dinkinesh and Donaldjohanson, so I'm excited for what we'll see at Eurybates!

a black and white photo of a woman wearing a turtleneck sweater and a dress . Alt: a black and white photo of a woman wearing a turtleneck sweater and a dress shrugging .

Why is there a slope variation in the visible but not the NIR? Maybe the material causing the slope doesn't reflect at NIR wavelengths. Maybe the orientation of the asteroid was equator-on for the visible observation but pole-on for the NIR observation. For now, IDK. 🤷🏽

Graph showing rotational phase vs spectral slope of three different asteroids.

I observed the 3 largest family members twice with IRTF, with ~5 hours between observations. The spectral slopes for each observation were compared, and there was no significant difference between them, suggesting that any surface variation is not detectable in the NIR.

This was motivated by a 2020 paper that found variation in the visible spectral slope of Eurybates over a 4.5 hour period. An inhomogeneous surface could give info about the formation of Jupiter Trojans and the collision that formed the family.
www.doi.org/10.1016/j.icarus.2019.113463

New paper! I observed the three largest members of the Eurybates family (the parent body is a target of the Lucy mission) with NIR spectroscopy to see if there were changes in the spectra as the asteroids rotated. 🔭🧪
www.doi.org/10.3847/PSJ/ade67a

Interstellar visitor confirmed.
#A11pl3Z is now known as 3I/ATLAS. It is only the third confirmed object from beyond our solar system.

An illustration of the asteroid belt as a dense donut-shaped ring of yellow points with the Sun at the center. The background is black with hints of dark blue in the corners and small white pinprick stars sprinkled throughout. A small illustrated Earth sits to the left of the Sun, and a semi-opaque, cone-like teal triangle extends from Earth toward the right. The cone opens up to a mosaic of a couple dozen small, square-like shapes representing Rubin Observatory’s LSST Camera’s detector area. The mosaic is overlaid onto a portion of the asteroid belt, and each tile represents a camera image that detects a group of asteroids.

In addition to these never-before-seen cosmic neighbors, Rubin detected another ~1800 previously-known asteroids, bringing the total detections to just under 4000 in just 10.5 hours!🔭🧪

In other words, over half of Rubin's first detections are new discoveries☄️

YouTube video by NOIRLabAstro A Swarm of New Asteroids

I really like this video showing some of the 2104 asteroids found in 10 hours of data - really gives a sense of how Rubin's view of the changing sky will be different. www.youtube.com/watch?v=JrmI...

WHAT