Official Twitter account of NASA’s Chandra X-ray Observatory. Operated for NASA by Smithsonian (SAO). Verification: nasa.gov/socialmedia Legal: s.si.edu/legal

In orbit
🌟Find out more about the discovery, including videos & images, at: chandra.si.edu/photo/2026/m8…
Sparkly, swirly, and surprising 🌌 @ChandraXray data shows that this galaxy, Messier 83, is unusual. Over 20 of its supernova remnants – remains from star explosions – vary drastically in X-ray brightness. Typically, the remnants' brightness would fade slowly over time.
5
50
235
10,969
Chandra Observatory retweeted
Super! 💫 Data from @chandraxray has uncovered possible remains of a supernova in the middle of our Milky Way galaxy. If confirmed, this supernova piece would be one of the closest to our galaxy’s central black hole that we have ever found. go.nasa.gov/4aT7pvb
823
5,168
25,916
1,962,145
When astronomers pointed NASA's Chandra at nearby galaxy M83, the last thing they expected to find was a population of supernova remnants appearing to dramatically change in brightness. More on the discovery: chandra.si.edu/photo/2026/m8… #AAS248
6
110
496
25,821
Visual Description: A video showing a composite image of the nearby galaxy Messier 83 on the left, and short timelapse videos of two curious supernova remnants hidden inside on the right. In the composite image, Messier 83, or M83, is shown to have a spiral structure, viewed straight on. At the center is a brilliant white and yellow pool of light. From that light, spiral arms of hot pink cloud corkscrew out in wide, sweeping arches. The galaxy is covered in a faint grey haze, and flecked with red, green, blue, white, and yellow dots. Two tiny dots to our lower right of center are highlighted by white circles. These are two of the supernova remnants being considered by researchers. Each is examined further in a separate timelapse video. Over a 14-year period from 2000 to 2014, astronomers pointed NASA’s X-ray observatory at the M83 galaxy. They discovered that about half of the X-ray sources believed to be supernova remnants, the aftermath of stellar explosions, were exhibiting dramatic changes in brightness. This result was entirely unexpected. Those changes in brightness are highlighted in the timelapse videos. In each video, a series of static images flashes by, focused on one of the two X-ray sources once believed to be supernova remnants. In the videos, the X-ray sources appear as bright blue blobs with glowing cores. But in each image, taken months or years apart, the shapes change, as does the intensity of the blue color, and the brightness of the core. By presenting the substantively different images of the same objects one after another in quick succession, short timelapse videos are created. The most likely explanation for the changes in brightness is that the team has uncovered a population of stellar survivors, stars that lived through an orbiting partner’s destruction in a supernova explosion. Material is being pulled from the surviving star onto the black hole or neutron star that formed in the supernova, a process known to cause rapid changes in X-ray brightness.
2
8
49
3,857
Chandra Observatory retweeted
Astronomers may have found a new supernova remnant near the center of the Milky Way galaxy using data from @chandraxray. If confirmed, this would be one of the closest supernova remnants to the supermassive black hole in the Galactic Center! 🔗go.nasa.gov/4vQqHcX
66
870
4,212
217,498
Astronomers may have found one of the closest supernova remnants to the supermassive black hole at the center of our Milky Way galaxy. It's expanding at about 3.2 million kilometers per hour (2 million mph) and is at least 1,700 years old. 💥More: s.si.edu/sgrc26
15
272
1,143
29,189
The supermassive black hole at the center of our galaxy, Sagittarius A*, is blowing a hot cosmic wind — something scientists have been hunting for over 50 years. ⚫More on the discovery at: chandra.si.edu/photo/2026/sg…
17
194
799
24,568
Some of our galaxy’s youngest, hottest, and most massive stars blaze to life in the nearby Carina Nebula. Winds from these powerful stars can carve out bubbles of hot gas, producing dramatic shapes in the surrounding clouds of colder gas and dust.✨
15
257
1,197
33,658
Chandra Observatory retweeted
The “most relaxed galaxy cluster in the universe” wasn't always so calm 🌀 New observations from @chandraxray show that Abell 2029 is still settling down after a collision with another smaller cluster about four billion years ago. More: go.nasa.gov/4egC1bd
37
295
1,556
40,200
Westerlund 2 is a young cluster of thousands of stars located about 20,000 light-years from Earth. This close-up image, roughly 12 light-years across, combines observations from NASA's Chandra X-ray Observatory & @NASAWebb.✨
41
426
2,000
103,583
At the heart of galaxy NGC 1365, a supermassive black hole is basically feasting at an all‑you‑can‑eat buffet in this image from Chandra and @NASAWebb. Located about 60 million light-years from Earth, this gobbling black hole has a mass of roughly 2 million suns... and growing.⚫
26
269
1,252
85,073
Sometimes described as "the most relaxed galaxy cluster in the universe," Abell 2029 had a wild past according to new observations from NASA's Chandra X-ray Observatory. More at: chandra.si.edu/photo/2026/a2… 🌀
10
157
624
21,575
Chandra Observatory retweeted
A-meow-zing 😻 @NASAWebb and @ChandraXray joined forces to deliver this view of the Cat's Paw Nebula. Different wavelengths combine to reveal young stars at the center of these dusty clouds.
1,235
7,726
39,862
1,923,924
Chandra Observatory retweeted
The force awakens in newborn stars. Hubble captured some cosmic "lightsabers" far, far away. These are actually young stellar jets, colliding at fast speeds with nearby gas and dust. Happy Star Wars Day from the Hubble team!
94
3,815
17,351
336,611
Chandra Observatory retweeted
Even the cosmos has a green thumb 💐 160,000 light-years away, 30 Doradus is in full bloom, displaying a stellar bouquet of thousands of stars. This image combines data from NASA’s Chandra X-ray Observatory, @NASAHubble, and the Atacama Large Millimeter/submillimeter Array.
73
576
2,770
129,914
This striking new view of the Pinwheel Galaxy combines X-ray light from Chandra with other types of light from ground-based observations, @NASAHubble, and XMM-Newton. The galaxy is roughly 170,000 light-years across, making it about 70% larger than our own Milky Way Galaxy.🌀
39
485
2,194
73,419
An X-ray emitting "little red dot" about 11.8 billion light-years from Earth may be key to unlocking the true nature of a mysterious class of sources that astronomers have found in the early universe. More: chandra.si.edu/photo/2026/xr… 🔴
7
66
317
13,992
Over 1,000 stars are located within 4 light-years of the center of the Westerlund 1 "super" star cluster. To give you a little context, 4 light-years is roughly the distance between our Sun and the next closest star to Earth. 🤯
20
197
917
33,267
Sun-like stars are dimming in their X-ray output more quickly than previously thought. Unlike in the movie "Project Hail Mary," this quieting of stars is a benefit for the prospects for life on orbiting planets around these stars — not a threat. ✨More: s.si.edu/dimming
9
93
433
25,936
Chandra Observatory retweeted
We're coloring in the picture, one telescope at a time! 🎨 NASA’s IXPE telescope has taken a new observation of a supernova remnant, RCW 86, which helps create a fuller picture of what other telescopes have observed >> go.nasa.gov/4t14Qhk
25
229
1,172
32,511