"Measuring roughly 1 billion light years."
We may finally know the origin of our galaxy’s excessive amount of antimatter.
It’s “red and dead” and challenging all our assumptions.
And it could be the key to a deeper understanding of dark matter.
Brace yourself for a collision of cosmic proportions.
Caltech astronomers created a virtual Milky Way with 30 neighboring star systems.
The galaxy may also be more chaotic, too.
Here's a quick guide to all you would-be explorers out there — and it's not as easy as you might think.
Gaia will keep stargazers busy for years to come.
A strange structure was just found in the middle of the Milky Way because of...a Tweet.
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