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The Chandra X-Ray Center is excited to announce the next Chandra/CIAO workshop to be held at UMass Lowell, 19-23 May, 2025. For more details and to register go to https://cxc.cfa.harvard.edu/ciao/workshop/may25/index.html

Flyer for the "Chandra/CIAO Workshop at UMass Lowell" titled A Journey Into X-ray Astronomy and Data Science, taking place May 19–23, 2025. Hosted by the Chandra X-ray Center and UMass Lowell, the workshop is designed for undergraduates, graduate students, and early-career scientists in STEM. Highlights include hands-on training in spectral and spatial X-ray analysis, source detection, Sherpa modeling, CIAO in Python, SAOImageDS9, the Chandra Source Catalog, and AI/ML for astrophysics.

Registration is free and open until April 25, 2025, with priority for UMass Lowell students. Space is limited to 30 participants. Notifications will go out by April 30, 2025. Students must attend in person and will be housed in campus dorms, with accommodations and meals likely covered. Travel funding may be available.

The flyer includes contact info, a registration link, and logos for Chandra X-ray Center, UMass Lowell, CIAO, the Heising-Simons Foundation, and the Center for Astrophysics | Harvard & Smithsonian. Background features space imagery with the Chandra X-ray Observatory satellite.

Time is running out! Abstracts are due in just over 24 hours for the #Chandra25 Symposium! To be held in Boston, MA this December, the Symposium will celebrate 25 years of Flagship X-ray science with one of NASA's Great Observatories. Further details, including abstract submission, can be found at https://cxc.harvard.edu/cdo/symposium_2024/

We hope to see many of you in Boston this December!
#Astronomy #Astrodon #XRaysAreTheBestRays #AstronomyConferences

Poster for the Chandra 25 Symposium, to be held Dec 3-6 in Boston. A graphic of the Chandra spacecraft rendered in silver is set in front of a starry, gaseous nebular of pinks, purples, and blues. Invited speakers and members of the organizing committees are listed.

This anniversary, we celebrate the team behind the mission. Thanks, Chandra team, for all you do!

(Shown here is a group shot of some of the team, past and present, at the party at our Control Center yesterday).
#Chandra25 #Astrodon #ChandraScience

A wide group shot of ~50 people in rows.

@fe06 @hubble_space
You can see us here: https://3d.si.edu/collections/Chandra

#OTD in 1999, the Space Shuttle Columbia lifted off with the heaviest payload ever sent to orbit on the STS -- the #ChandraXRay Observatory. Soon after, Chandra was deployed from the Cargo Bay and boosted to its final orbit via the final Shuttle-based launch of the Inertial Upper Stage (IUS).
#Chandra25 #NASA #Astronomy #Astrophysics #Astrodon #OTD1999 #XRaysAreTheBestRays

A Space Shuttle rising above the launch tower as plumes of smoke shoot outward at ground level. The glow of the night launch is reflected in a foreground body of water.

A long, shiny satellite hanging from the back of the Space Shuttle cargo bay as the Shuttle orbits face down. Below is the Earth, with an unidentified coastline underneath. At the tail end of the satellite, a small white booster can be seen.

The aft end of the Chandra / IUS stage. A golden rocket nozzle is seen nearly face on, while shiny silver components of the attached satellite are seen beyond the booster.

Chandra Science boosted:

Happy 25th launch-iversary to Hubble’s frequent partner in science, NASA’s #Chandra X-ray Observatory. 🚀 🎉

What a wild, wonderful quarter-century it’s been! Explore this collaborative image of the Bullet Cluster, key evidence for the existence of dark matter: https://bit.ly/4csUY82 #Chandra25

Space is densely filled with points of light, which are mostly galaxies, in various sizes and shapes in yellow, white, and blue. The galaxies appear as small dots, thin ellipses, fuzzy halos, and spiral shaped blobs. A transparent reddish blob is in the center of the image. Within this red area two regions have galaxies that are more densely grouped together: one area is in the center left and the other in the center right. The area of these clusters is highlighted, each with a bright blue glow. Within the large red blob, between the two blue regions, there are brighter areas of pink, one in the center and one to the center right. The bright area to the center right forms a well-defined u-shaped arc pointing back toward the center.

Good morning, it is July 23 here in Cambridge, MA, meaning that today is our 25th BIRTHDAY!

What better way to start this party than a release of 25 images to celebrate 25 years: https://www.nasa.gov/missions/chandra/25-images-to-celebrate-nasas-chandra-25th-anniversary/

#Astrodon #Astronomy #Astrophysics #NASA #Science #Space #XRayAstronomy #ChandraScience #XRaysAreTheBestRays #25Years

This image shows a collection of 25 new space images celebrating the Chandra X-ray Observatory’s 25th anniversary. The images are arranged in a grid, displayed as five images across in five separate rows. Starting from the upper left, and going across each row, the objects imaged are: Crab Nebula, Orion Nebula, The Eyes Galaxies, Cat’s Paw Nebula, Milky Way’s Galactic Center, M16, Bat Shadow, NGC 7469, Virgo Cluster, WR 124, G21.5-0.9, Centaurus A, Cassiopeia A, NGC 3532, NGC 6872, Hb 5, Abell 2125, NGC 3324, NGC 1365, MSH 15-52, Arp 220, Jupiter, NGC 1850, MACS J0035, SN 1987A.

Hi everyone at #AAS244 -- swing by the Exhibitor Theater (in the Exhibit Hall, toward the back) at 10 AM today to hear @ThomasConnor talk about 25 Years of Science with NASA's Flagship X-ray Observatory.

At #AAS244 and looking for something to do? Come to our booth and learn about the ongoing science we're doing, our outreach initiatives, how to become an X-ray astronomer (or pretend to be one convincingly!), and grab some great swag!

#XraysAreTheBestRays #ChandraXRay #Astrodon

A booth at a science conference. The center of display has a large backdrop showing the Chandra X-ray observatory, an orbiting satellite with prominent solar panels.

New, on @TheConversationUS:
I'm an Astrophysicist mapping the Universe with data from #ChandraXRay: Clear, sharp photos help me study energetic black holes.

https://theconversation.com/im-an-astrophysicist-mapping-the-universe-with-data-from-the-chandra-x-ray-observatory-clear-sharp-photos-help-me-study-energetic-black-holes-229668

#NASA #Astrodon #Astrophysics #TheConversation #XraysAreTheBestRays #Science #Space #Astronomy

The second is "The Sounds of Feedback: Deep and Wide Imaging of the Cool Core of the Perseus Cluster" led by Andrew Fabian at the #UniversityOfCambridge

The Perseus cluster has a supermassive black hole in its center blowing giant bubbles. The image below, which is over 1 million light years across, shows these bubbles rising through the cluster's gas. Deeper Chandra observations will reveal how this energy propagates at the most massive of scales.

Purple-tinted image of the Perseus cluster's X-ray-emitting gas. A large swirl dominates the overall structure, with smaller whirls bent by outward-rising bubbles.

The first is "A Treasury Survey Probing the Baryon & Energy Cycle and X-ray Binary Evolution in Galaxies at High Angular Resolution", led by #OhioStateUniversity's Smita Mathur.

This survey will leverage our high-angular resolution capabilities in synergy with JWST, ALMA, VLT/MUSE, and others to observe the PHANGS galaxy sample, linking X-ray sources to their host stellar and nebular environments. M74, shown here, is a PHANGS galaxy already observed in this manner.

A spiral galaxy like our own Milky Way, known as Messier 74. Shown face-on from our vantage point on Earth, the galaxy's sparkling arms spiral out from a bright white core. The core appears vibrant and alive, and crackles with lightening-like, pale blue light. Glowing, high-energy stars in purple, white, and orange, dot the lengths of the spiraling arms. Webs of murky dust crisscross the space between the curving silver blue arms, also known as dust lanes.

In November, we asked the community:

Are there major initiatives for which the capabilities of @ChandraScience are absolutely required to address fundamental questions about our current understanding of the Universe that would represent a crucial missed opportunity if they are not completed during Chandra's lifetime?

The community responded, and we are pleased to announce two Chandra Legacy Programs
https://cxc.harvard.edu/CLP/

#Astrodon #Astrophysics #XraysAreTheBestRays #ChandraXRay

That's No Moon!

Well, in this case it is. Back in 2003, #Saturn's moon Titan passed in front of the #CrabNebula. Chandra was on the spot, catching the transit as it happened. Astronomers were able to see the shadow cast by Titan, and used the size of that shadow to measure the extent of Titan's atmosphere.

A great result, demonstrating the power of the Dark Side!

More info: https://chandra.harvard.edu/press/04_releases/press_040504.html
Science: https://ui.adsabs.harvard.edu/abs/2004ApJ...607.1065M/abstract
#MayThe4th #StarWarsDay #Astrodon #ChandraXRay

An x-ray image of the Crab nebula, a swirling blue disk seen at an angle, with extended jets. A line is drawn across it, labeled "Titan's Path," and an inset shows a black shadow on the blue background.

We recently released version 2.1 of the #ChandraXRay Source Catalog!

In short, everything we observed that was released publicly prior to the end of 2021 has been reduced, processed, and made available for easy consumption. With over 400,000 individual sources and covering 730 square degrees, the CSC opens the X-ray sky to all astronomers -- even if you've never looked at an X-ray photon before.

Learn more:
https://chandra.si.edu/blog/node/879
#Astrodon #XRaysAreTheBestRays

A sky map in Galactic coordinates shown in Mollweide (elliptical) Projection, featuring dots ranging in size and color, from red through off-white to blue. Redder dots tend to be slightly larger than blue dots.

Happy Earth Day! While the #ChandraXRay mission has observed sources near and far, we're one of a very limited set of astronomical observatories that has actively and intentionally observed Earth!

In the winter of 2003-2004, we observed the soft energy X-rays associated with the Northern Lights.

Learn more: https://chandra.cfa.harvard.edu/press/05_releases/press_122805.html
https://ui.adsabs.harvard.edu/abs/2007JASTP..69..179B/abstract

Credit: NASA/MSFC/CXC/A.Bhardwaj & R.Elsner, et al.; Earth model: NASA/GSFC/L.Perkins & G.Shirah

Four panels showing a projection of the Earth as seen looking down toward the Hudson Bay and northern Canada. In each panel, a thin line of emission, shown as a fuzzy patch of color, stretches across the sky. Panels are labeled January 24, January 30, February 15, and April 13, all 2004.

We're here at the Main Event of #HEAD21 -- The #Chandra25 Session. We have three talks---by Daryl Haggard, Tea Temim, and Stephanie LaMassa---on Sgr A*, Supernovae, and AGN, respectively. #ChandraScience

Schedule of a session at a conference, showing three thirty minute talks.

It's a full house at #HEAD21 to learn about the Chandra Source Catalog! CSC 2.1 just released last week, and you can access it at https://cxc.cfa.harvard.edu/csc/. #Astrodon #ChandraScience #XraysAreTheBestRays

A conference room viewed from the rear with five rows of tables, each filled with people sitting down watching a presentation.

A view into a conference room with multiple rows of tables, seen from outside over the heads of people standing in the doorway.

Are you at #HEAD21? Come swing by our booth! Get a brand-new #Chandra25 sticker, find out about the upcoming symposium (https://cxc.cfa.harvard.edu/cdo/symposium_2024/), ask your questions about the observatory, and find out about the great new work being done by our archives and source catalog teams!

#XRaysAreTheBestRays #ChandraScience #Astrodon

A man sitting at a long table with a black tablecloth. He is smiling at the camera. Behind him is an 8 foot tall / 8 foot wide backdrop, depicting the Chandra X-ray Observatory in space, with a cosmic nebula behind it. Across the table are various documents and handouts, a model of the spacecraft, and a prominent QR code. Following the advice of this toot, a man is standing at the left of the table, looking at material there.

Roses are black
Violets are black
-- Hey, we only observe X-rays
Cut us some slack!

#ScienceValentine #Valentine #XRaysAreTheBestRays

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