Although Rabbi Jacobs’ article alludes to numerous other examples of scientific knowledge, let me conclude by examining a broader area which might be termed practical or applied astronomy.

Matter in intergalactic space is distributed in a vast network of interconnected filamentary structures, collectively ...

we can tune into the hidden sounds of our planet, from the pull of the moon on our mountains and cities to a silent rumble so deep and powerful, it can move the earth around it.

But when Feb. 14 rolls around, lovers trade letters or cards and give gifts, much like they do in the U.S. If you’ve had enough of heart-shaped trinkets on Valentine’s Day, get inspired by ...

But planets around red dwarfs are also likely to be “tidally locked”—always presenting one side to the star, in the same way our moon shows only one face to the Earth. This would render half ...