Astronomers Find Mysterious Planets In Space These Planets are Free-floating Without A Sun!

In the endless stretch of the universe, something truly incredible appears from time to time. These findings challenge the very foundation of our understanding. The latest discovery from NASA’s James Webb Space Telescope (JWST) does just that. Webb Telescope has introduced the Jupiter Mass Binary Objects or JuMBOs. These aren’t your regular celestial bodies. They are Jupiter-sized objects floating freely in space, unattached to any stars!

We find them down as small as one Jupiter mass, even half a Jupiter mass, floating freely, not attached to a star. Physics says you can’t even make objects that small. We wanted to see, can we break physics. And I think we have, which is good,” says Professor McCaughrean.

Deep into the Orion Nebula

The setting for this extraordinary find is the Orion Nebula. Situated approximately 1,400 light-years from our blue planet, this star-forming region is not just any ordinary section of space. It has fascinated researchers for generations. However, thanks to the JWST, we are getting an unrivaled look into its wonders.

During a detailed survey of the nebula, JWST identified an incredible 40 pairs of these JuMBOs. And here’s the kicker – they move autonomously in pairs. This dance of the mysterious planetary bodies has puzzled astronomers. Why is this movement so unique? Let’s dive deeper.

Image source: The Guardian

The Mysteries Behind JuMBOs

What makes JuMBOs so elusive is not just their free-floating nature but also their origin. Professor Mark McCaughrean, the European Space Agency‘s senior science advisor, sheds light on two prevailing theories.

Emergence from Sparse Nebula Regions: These JuMBOs could have taken birth in regions of the nebula where the material density wasn’t strong enough to form full-blown stars.

Ejection from Star Systems: Another compelling thought is that these objects might have originally orbited stars but were then thrown into immense space due to some interactions.

Both theories have their merits, but the bizarre nature of these planets traveling in pairs complicates things. Lone rogue exoplanets are more common. But two planet-mass objects gravitationally bound together raise several questions. Our current understanding suggests that these “baby planets” can be removed from their native systems quite easily. However, the paired exit remains a mystery.

Gas physics suggests you shouldn’t be able to make objects with the mass of Jupiter on their own, and we know single planets can get kicked out from star systems. But how do you kick out pairs of these things together? Right now, we don’t have an answer. It’s one for the theoreticians,” says Professor McCaughrean.

Unique Characteristics

With an estimated age of about a million years, these JuMBOs are relatively young. They exhibit temperatures close to 1,000 Kelvin (roughly 700 degrees Celsius). These also maintain an orbital distance ranging between 25 and 390 times the distance from Earth to the Sun.

The soft light they emit shows the presence of interesting elements like water vapor, carbon monoxide, and methane. Despite these qualities and their similarity to gas giants like Jupiter, they can’t host liquid water or sustain any form of alien life.

Defying Physics and Introducing New Worlds

Before the JWST set its lens on them, ground-based telescopes had already hinted at the existence of such mysterious objects. And, as Professor McCaughrean stated, the discovery of entities even as small as half the mass of Jupiter floating freely defies our existing understanding of physics.

Furthermore, the term “binary” in their name echoes their paired movement. This is similar to binary solar systems featuring two stars. Their existence prompts a challenging question: Are they stars? Are they planets? Or are we gazing upon a new category of celestial bodies?


The discovery of JuMBOs has not just presented an exciting mystery for astronomers. It has also gifted the broader community with a deeper, more profound question about our universe. As we continue to probe, research, and understand, discoveries like these remind us of the vast unknowns that lie beyond our horizon, waiting to be unraveled.

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