I saw that! I can't believe they would do this to us!
05.03.2026 02:59
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I saw that! I can't believe they would do this to us!
Books displayed on a dark couch in front of a wooden desk. Clockwise from left: An Emission Line Study of the Milky Way, Atlas of Galaxies, Astronomical Calendar, Particle Physics Brick by Brick, Astronomical Spectrographs and their History, Voyager to the Planets.
FYI, these are all headed to their new home with @erikahamden.bsky.social! 🤩
Get your own spacey book collection here:
www.asplibraryproject.com
#ASPLibrary 🧪 📚 🔭
#BookSky 📚💙
Side-by-side images of the same nebula show how differently it appears in near-infrared, on the left, versus mid-infrared light, on the right. Left image is labeled NIRCam and the right is labeled MIRI. In near-infrared, the nebula’s outer bubble has a white edge and its inner clouds are orange, with a distinct dark lane cutting vertically through the center. Stars and background galaxies appear around the nebula and through the outer bubble. In mid-infrared, the outer bubble has a bluish tint and there is more material in the inner clouds, which are colored off-white. The vertical dark lane is still present but more interrupted and covered by the clouds. Material appears to be erupting out the top of the nebula, and this effect is mirrored to a lesser degree at the bottom, opposite end.
ICYMI: 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://science.nasa.gov/missions/webb/nasas-webb-examines-cranium-nebula/ 🔭 🧪
Reporting live from Galaxy Slam. Marcia Rieke has already figured out and deployed the flashing light spirit towels we all got.
An image of Mars taken by the HiRISE camera aboard the Mars Reconnaissance Orbiter. It shows the Mars Perseverance rover on its descent to the surface, its parachute spread out above it, with the surface of Mars in the background. An inset image shows an zoomed-in view of the rover Entry-Descent-Landing stage.
Five years ago today! We imaged Perseverance on its descent to Mars, under fairly challenging conditions but we did it because we have a kickass team.
www.uahirise.org/ESP_068281_9...
Our Sun is a “lonely” star, and that makes it unusual in a universe where most stars have companions. ☀️🧪
Galaxy Slam trading cards are in. Better stock up on Ty’s for selling on eBay after the HWO life detection discovery in 2041.
Hey y'all. I'm hiring. Are you interested in building instruments for astrophysics?
wd5.myworkdaysite.com/recruiting/u...
Astrophysicist @erikahamden.bsky.social breaks down how our galaxy alone contains hundreds of billions of stars, and the observable universe holds hundreds of billions of galaxies spread across an unimaginably vast volume of space.
The universe is packed with galaxies, but still most of it is astonishingly empty. 🌌
A majestic sweeping view of Saturn, illuminated from the right, its ring system casting shadows across the planet's northern hemisphere.
Saturn. By Cassini.
Kudos to LPL's Head and Director, Dr. Mark Marley, for being awarded the 2026 Lecar Prize! science.arizona.edu/news/lunar-p...
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
If you stood on the Moon, you’d see Earth frozen in one spot in the sky. 🌍🧪
Astrophysicist @erikahamden.bsky.social unpacks how tidal locking, a gravitational effect that causes the Moon to rotate once for every orbit around Earth, keeps one side of the Moon permanently facing us.
What happens when the universe runs out of stars? ⭐️🧪
Astrophysicist @erikahamden.bsky.social walks us through the far future of the cosmos, where expansion pushes galaxies apart and star formation comes to a halt. The stars that do exist will eventually burn out, leaving behind black holes.
Our NASA’s Pandora space telescope is on orbit!! Congrats to the team and NASA, LSP, SpaceX, and everyone who helped to get to this exciting point! What will Pandora do and why is it important for exoplanet science? Read my short article on this: theconversation.com/nasas-pandor...
Jupiter is the largest planet in our solar system, but did you know it nearly became a star? ⭐️🧪
Astrophysicist @erikahamden.bsky.social explains that while Jupiter is massive, it would need to be about 80 times more massive to initiate nuclear fusion and become even a small star.
😍 I agree!!!
OMG! Amazing!!! I hope you have clear skies and the view is great!!
There’s a cloud in space with 140 trillion times more water than Earth 🌧️
Astrophysicist @erikahamden.bsky.social explains how astronomers discovered a massive water vapor cloud near a black hole. The extreme heat from the activity of the black hole keeps it in vapor form, making it easier to spot.
Want to slow down aging? 🕒🧪
Astrophysicist @erikahamden.bsky.social breaks down a mind-bending reality of motion and time: the faster you move through space, especially near the speed of light, the slower you experience time.
NASA revealed they found some of the building blocks of life in a sample brought back from an asteroid (on a University of Arizona-led mission, by the way).
It raises some big questions about whether there’s other life somewhere out there in the universe. According to my math, probably.
A bright green shape at lower left, the coma of interstellar comet 3I/ATLAS, leaving a faint trail of gas from lower left to upper right right behind it. The background is a dense starfield, with some bright, nearby stars at upper centre.
The stanning of interstellar comet 3I/ATLAS in this account continues
Image credit: Victor Sabet, Julien De Winter
The main problem is that space telescopes in Low Earth Orbit share the similar orbits as the telecommunication satellites.
Here we show a simplified representation of the increased orbital crowding between 1958 (Sputnik) and the projected satellite population at the end of the next decade.
It's that time of year again
From Ansh Gupta: Astronomers have spent decades searching for seeds of the earliest black holes. Did JWST just glimpse the very first ones? ⚛️🔭☄🧪
astrobites.org/2025/11/27/g...
The dinosaur extinction event is my personal unit for getting a sense of astronomical time. For instance, if the local bubble formed 1-2 Myr ago, that’s After Dinos = very recent!!
What does a giant cloud in space smell like? 🍓✨
Astrophysicist @erikahamden.bsky.social explains how a giant cloud called Sagittarius B2 smells like raspberries because it’s full of ethyl formate, the molecule behind the fruit’s sweet scent. Astronomers were searching for amino acids.
How heavy is a teaspoon of neutron star? 🥄💥🧪
Astrophysicist @erikahamden.bsky.social explains how this stellar core remnant weighs more than a mountain because it’s packed with neutrons under crushing gravity.
Watch the video here:
i’m excited to announce that i am hiring (again)!
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
