Mariella Moon has been a night editor for Engadget since 2013, covering everything from consumer technology and video games to strange little robots that could operate on the human body from the inside one day. She has a special affinity for space, its technologies and its mysteries, though, and has interviewed astronauts for Engadget.
is making it possible to detect more celestial objects we previously wouldn't be able to, including ones that can further our knowledge on how our universe began. A team of astronomers, for instance,a "rich population of brown dwarf candidates" outside our own galaxy for the first time. The image above was captured using the telescope's Near-InfraRed Camera instrument.
We already know of the roughly 3,000 brown dwarfs inside the Milky Way, but Webb made it possible to find candidates 200,000 light years away from our planet. "Only with the incredible sensitivity and spatial resolution in the correct wavelength regime is it possible to detect these objects at such great distances," said Peter Zeidler, the team leader from AURA/STScI for the European Space Agency.
Brown dwarfs are neither planets nor stars. They're free-floating objects around 13 to 75 times larger than Jupiter, and they aren't gravitationally bound to a star like exoplanets are. Yes, they're bigger than the biggest gas giants, but they're also not big enough to produce massive amounts of light, which is why they're sometimes called "failed stars.
Brown Dwarf European Space Agency Celestial Objects Our Universe
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