articles tagged: cosmology
astronomers find more dark matter free galaxies
# space

astronomers find more dark matter free galaxies

A new study sees evidence of more than a dozen galaxies that seem to lack dark matter and raises big questions about our ideas of galaxy formation.

so, what shape is the universe?
# space

so, what shape is the universe?

Why do popular science news keep offering new theories about the basic shape of our universe every week?

wowt explains: what is dark matter?
# science

wowt explains: what is dark matter?

We might know that dark matter is everywhere, but we know very little about it. So, what do we understand about this mysterious but critical component of the universe?

how an artificial intelligence learned to understand the universe
# science

how an artificial intelligence learned to understand the universe

For the first time, an AI was trained how to simulate a universe 600 million light years across. Does how fast it was able to do it and how well it understood its task tell us something profound about the cosmos?

galaxies without dark matter may actually be full of it
# space

galaxies without dark matter may actually be full of it

Galaxies seemingly lacking dark matter which threatened to rule out alternative ideas about what dark matter could be may actually be full of it, according to a second, in depth look.

are diffused galaxies a blow to the theory of modified gravity?
# space

are diffused galaxies a blow to the theory of modified gravity?

Are two galaxies which seem to lack dark matter proof that dark matter must be a particle rather than a quirk of gravity at cosmic scales. Well, it's actually kind of complicated...

world of weird things podcast: how do you solve a problem like dark matter?
# podcast

world of weird things podcast: how do you solve a problem like dark matter?

Cosmologists have been trying to figure out what dark matter is made of for decades and getting nowhere. And now, some are wondering if dark matter is just an illusion created by gravity.

there may not be dark matter or energy, just gravity. we just don’t know how.
# space

there may not be dark matter or energy, just gravity. we just don’t know how.

Theoretical physicists seem ready to move on from looking at dark matter as unknown particles we’ve yet to discover, and consider it a side-effect of gravity at cosmic scales.

how we know the milky way is warped and twisted, and how it got that way
# space

how we know the milky way is warped and twisted, and how it got that way

If you imagine galaxies as tranquil clouds of gas and dust, lit up by billions of pinpoints of light, a 3D map of the Milky Way and the details behind it will show you otherwise.

world of weird things podcast: ultimate doomsday prepping
# podcast

world of weird things podcast: ultimate doomsday prepping

Just because the universe is dying doesn’t mean you and your civilization have to die with it, at least not if you’re ready to go stellar grave robbing.

older articles