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3 articles for “universe”
- Science & Universe
What Is Dark Matter?
Most of the matter in the universe does not shine, reflect or absorb light. We know it is there only because of its gravity.
Everything we can see — stars, planets, gas, dust, people — makes up only a small part of the universe. Measurements suggest that ordinary matter accounts for about 5% of its total energy content…
6 min read
- Science & Universe
How Black Holes Actually Work
Not cosmic vacuum cleaners, but regions where gravity wins completely. Here is what really happens at the event horizon — and how we finally managed to see one.
…from black holes formed by stars, which would take vastly longer than the current age of the universe to evaporate. It remains one of the most important unconfirmed predictions in physics. A black…
8 min read
- Science & Universe
Why a Day on Venus Is Longer Than Its Year
Venus takes longer to spin once than to orbit the Sun — and it spins backwards. Here is what that means on its surface.
4 min read
