
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
Israeli girl suffers cardiac arrest during sirens in Safed, hospitalized in serious condition - 2
Iran fires one of largest barrages in weeks ahead of Passover - 3
Step into Nature: A Survey of \Handling Trails with Solace\ Climbing Shoes - 4
Iran war triggering Easter staycation boom - 5
Behind every perfect holiday memory is a mom on the brink
Investigation reveals sperm donor passed on cancer risk to dozens of children across Europe
From ‘Project Hail Mary’ to Artemis II, spaceflight captures audiences when it centers on people because human space travel is hazardous
Far-right German youth group delegates seek deportations, remigration
Several injured as man threatens attack on German high-speed train
Expert advice for new stargazers: How to begin your amateur astronomy journey
Spain breaks jobs record with 22 million Social Security contributors
Child influencers helped power a booming industry. It's time for a reckoning.
Winter storm warnings issued across Northeast as up to 9 inches of snow forecast; deadly atmospheric river in California snarls travel
Consumers advised to dispose of 19 cooking pans due to lead leaching risk, FDA reports












