For nearly 25 years, we thought we knew how the Universe would end. Now,…
Category:
SCIENCE
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The mutual distance between well-separated galaxies increases with time as the Universe expands. What…
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The center of the galaxy doesn’t just host stars and a black hole, but…
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SCIENCE
What was it like when humans first arose on planet Earth? | by Ethan Siegel | Starts With A Bang! | Apr, 2024
70,000 years ago, a brown dwarf pair known as Scholz’s Star, right on the…
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SCIENCE
What was it like when oxygen killed almost all life on Earth? | by Ethan Siegel | Starts With A Bang! | Apr, 2024
Although our planet is thought to have had about a 2:1 ratio of oceans…
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SCIENCE
Ask Ethan: How do symmetries lead to conservation laws? | by Ethan Siegel | Starts With A Bang! | Apr, 2024
Emmy Noether, the person who proved Noether’s theorem, which connects symmetries and invariances of…
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SCIENCE
How to measure a lunar month during the solar eclipse | by Ethan Siegel | Starts With A Bang! | Apr, 2024
This partial solar eclipse, captured over Arlington, VA in 2021, shows the Moon’s disk…
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SCIENCE
Ask Ethan: Has a new study disproven dark matter and dark energy? | by Ethan Siegel | Starts With A Bang! | Mar, 2024
The full-field image of MACSJ0717.5+3745 shows many thousands of galaxies in four separate sub-clusters…
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NASA’s only flagship X-ray telescope ever, Chandra, still works and has no planned successor.…
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SCIENCE
Ask Ethan: How did matter come to exist in our Universe? | by Ethan Siegel | Starts With A Bang! | Mar, 2024
In the very early Universe, there were tremendous numbers of quarks, leptons, anti-quarks, and…