Plenty of hypotheses have been put forth to explain the origins of the enigmatic, cigar-shaped, interstellar object named ʻOumuamua. Most recently, it was aliens. More pedestrian explanations have included that it is a kind of comet or asteroid. But a new study published in Journal of Geophysical Research: Planets suggests a new hypothesis: it’s a broken-off hunk of a Pluto-like dwarf planet.

watch out, avi

The Webb Telescope will drop everything to observe the next interstellar object

Comet? Asteroid? Alien? Webb could suss out these strange interlopers.


Europe’s space agency greenlights Comet Interceptor to study the next ‘Oumuamua

“If you build it, they will come.”

visitor from another world

'Oumuamua update may be bad news for alien truthers

The enigmatic object isn't aliens. But it could be a “messenger” from another world.

Inverse Daily

Alien technology? In our Solar System? One scientist says yes

Avi Loeb, an astrophysicist at Harvard, refuses to give up his quest.

cosmic messenger

Interstellar object Oumuamua may be a giant chunk of hydrogen ice

A new origin story could help explain the object's odd properties.

The Future Of Week

Inverse Daily: The future of voting

You may have seen the photos by now.

alien visitor

A new, violent origin story for 'Oumuamua explains the interstellar object’s weird shape

The more we learn about this interstellar visitor, the weirder it gets.


The 11 wildest space photos of 2019

The cosmos has an infinite amount of beauty and wonder.


Scientists home in on mysterious alien comets' interstellar origins

A new study suggests there may be many more of these alien objects orbiting the Sun than we thought.


Inverse Daily: "A puzzle that we can’t really explain”

On August 30, amateur astronomer Gennady Borisov observed a comet in the sky above Crimea, coming from a distant part of the galaxy and moving toward Earth.


Comet Borisov and planet formation is "still a puzzle that we can’t really explain"

2I/Borisov is the second interstellar object ever observed


Investigation Into 'Oumuamua’s “Alien” Status Reveals a Natural Explanation

We might have to rethink what is "normal."


SETI Evidence Disproves Harvard Theory That 'Oumuamua Is an Alien Probe

Still weird, though.


NASA Study on 'Oumuamua All but Debunks "Alien Probe" Theory

This mystery space object seems more like a comet every day.


Oumuamua NASA: Giorgio Tsoukalos Explains Why It’s Probably an Alien Probe

“I’m leaning towards the space probe idea," the 'Ancient Aliens' star tells Inverse.


Oumuamua Alien Spaceship? The Stars of ‘Ancient Aliens’  Have Some Theories

“It could be a spaceship.”