
When you buy through links on our articles, Future and its syndication partners may earn a commission.
Recently, the James Webb Space Telescope (JWST) took a stunning image of the star cluster known as Westerlund 2, located in a stellar nursery called Gum 29 found within the Carina Nebula. The cluster is 6-to-13 light-years across and has some of the hottest and biggest stars found in the Milky Way.
What is it?
While the Westerlund 2 cluster was the subject of Hubble's 25th anniversary image in 2015, JWST has taken a different view of the area, resulting in what previous telescopes struggled to count: the cluster's faintest members.
The JWST helped uncover for the first time the full population of brown dwarfs in this massive young star cluster, including objects as small as around 10 times the mass of Jupiter.
Brown dwarfs are grouped under the "dwarf" umbrella because they are star-like objects that form from collapsing gas clouds, yet never become big enough to sustain long-term hydrogen fusion like true stars.
Where is it?
The Carina Nebula is located in the Carina constellation, around 20,000 light-years away from Earth.
Why is it amazing?
Finding brown dwarfs in this harsh and brilliant environment is important because it helps astronomers answer a key question: How efficiently are low-mass objects, like brown dwarfs, being made when there's intense radiation in the area? A complete census of the stars in the image lets scientists compare the Westerlund 2 cluster to quieter star-forming regions and test whether extreme conditions change the "mix" of the objects that are formed.
Want to learn more?
You can learn more about the James Webb Space Telescope and star formation.
latest_posts
- 1
The beauty advent calendar boom is here. Sephora kids are all in. - 2
Infants will no longer receive hepatitis B vaccine at birth, CDC announces - 3
Experience Is standing by: History's Most noteworthy Travelers - 4
A Manual for Nations with Extraordinary Food - 5
Sydney Sweeney is returning in 'The Housemaid's Secret': What to know about 'The Housemaid' sequel
Jeff Bezos’ Blue Origin launches landmark Mars mission in New Glenn rocket’s first big test
The Best Competitors of the 21st Hundred years
Fisherman Attacked by Great White Shark Says ‘My Left Foot Was in His Mouth’
Bird flu poses risk of pandemic worse than COVID, France's Institut Pasteur says
Melodic Event: A Survey of \Energies and Exhibitions Assessed\ Live concert
Dozens injured in Russia after train crashes, overturns
Sydney Sweeney's American Eagle campaign and Kendrick Lamar's Super Bowl performance were among the 10 biggest pop-culture moments of 2025
Comet MAPS faces a make-or-break moment as it dives toward the sun on April 4 — could it shine in the daytime sky?
10 Setting up camp Shelters That Offer Both Excellence and Isolation












