The Andromeda galaxy isn't making stars like it used to. A new study using @NASAHubble data shows that star formation in Andromeda has been slowing down over the last 40 million years:
We've finished fueling up our @NASARoman telescope, bringing it one step closer to its targeted liftoff on Aug. 30.
Learn more about the process and find out what's next for our mystery-solving mission:
There is more than meets the eye in this photo…
The ring around the central galaxy cluster is evidence of dark matter, the invisible glue holding the universe together. Dark matter doesn’t emit, reflect, or absorb light, but it has gravity like ordinary matter. 🧵
During his eight months aboard the @Space_Station, @Astro_ChrisW conducted numerous experiments to improve life on Earth and prepare us for future space missions.
From cancer research to advancing technology, read about Williams’ work in orbit:
Check! ✔️
For the first time, scientists used our IXPE telescope to measure the magnetic field of a pulsar—a spinning neutron star—located in the Lighthouse Nebula. This data helps us understand the structure of these extreme cosmic objects.