
This is the object called G1.9+0.3 by astronomers. It’s about 28,000 light-years from Earth near the center of our Milky Way galaxy. The object is an expanding shell of gas, left behind by the most recent supernova, in Earth’s time frame, known to have occurred in our galaxy.
If gas and dust had not heavily obscured it, the supernova explosion would have been visible from Earth just over a century ago.
A new observation with NASA’s Chandra X-ray Observatory made this image possible. For astronomers, these Chandra observations – made over the equivalent of 11 days of time – reveal new details about the explosion.
Like what you read?
Subscribe and receive daily news delivered to your inbox.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
More from
Deborah Byrd
View All
Total solar eclipse August 12, 2026: Best images
August 12, 2026
How to watch a solar eclipse safely: tips here
August 11, 2026
Mars Curiosity rover’s 7 minutes of terror 14 years ago
August 5, 2026
Earthquake in Japan triggers mall collapse in Kumamoto
July 28, 2026
