Astronomer Francis Baily described Cincinnati in the 1700s
If you saw a total solar eclipse earlier this month, you may have noticed the so-called diamond ring effect that precedes a total solar eclipse. The last sunlight passed through …
If you saw a total solar eclipse earlier this month, you may have noticed the so-called diamond ring effect that precedes a total solar eclipse. The last sunlight passed through …
The universe is expanding. But it moves at very different speeds depending on where we observe it. This problem is called the Hubble tension, and at its core is the …