We may have to rewrite our understanding of gravity
3 March 2021
There is a mismatch between two ways of measuring galactic mass. Dark matter is one way to solve it, but so is rewriting the laws of gravity, says Chanda Prescod-Weinstein
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Premium
How every galaxy comes from quantum fluctuations billions of years ago
6 January 2021
All the galaxies in the universe started out in a similar way, but the forms they now take are incredibly diverse, writes Chanda Prescod-Weinstein
Does a halo of mysterious dark matter swirl around every galaxy?
2 December 2020
Many galaxies seem to have bubbles of dark matter enveloping them, but finding out if every galaxy is like this is an ongoing area of research, writes Chanda Prescod-Weinstein
Why the vast emptiness of space isn't really that empty after all
4 November 2020
Space-time may seem empty, but the expanse between stars is filled with more interesting stuff than you may think, writes Chanda Prescod-Weinstein
Why dark matter should be called something else
12 August 2020
There are many things that we don't understand about dark matter, but whether it is actually dark isn't one of them, writes Chanda Prescod-Weinstein
Elements from the universe’s earliest stars gave birth to our sun
15 July 2020
It is easy to regard the sun as humdrum, yet it contains elements blasted from the universe’s first stars as they died and is halfway through its 9-billion-year lifespan
We still don't understand a basic fact about the universe
25 March 2020
Our measurements of the Hubble constant can't seem to come up with a consistent answer. What we learn next may alter our view of the cosmos, writes Chanda Prescod-Weinstein
Figuring out what the Milky Way looks like is akin to a murder mystery
29 January 2020
How can we get a picture of the whole Milky Way if we are inside it? Good sleuthing is needed to combine all the clues, writes Chanda Prescod-Weinstein
Studying the universe’s origins hint that its beginning has no end
27 November 2019
The cosmos is stranger than we ever imagined and new bubbles of space-time may pop up and grow continuously with no beginning or end, writes Chanda Prescod-Weinstein
Dust is annoying, but it is also key to life and death in the cosmos
2 October 2019
Dust gives us trouble, whether at home or in space, but it plays a key role in star formation and destruction, and in allowing us to understand huge objects like galaxies says Chanda Prescod-Weinstein
