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A cute mathematical trick can "rescale" the Universe so that it isn't actually expanding. But can that "trick" survive all our cosmic tests?
In a distant galaxy, a cosmic dance between two supermassive black holes emits periodic flashes of light.
As the Earth spins and wobbles on its axis and revolves elliptically around the Sun, each day changes from the last. "24 hours" isn't right.
Particles behave differently when freed from the force of gravity. A new space factory aims to use this to synthesize pharmaceuticals.
In the ongoing battle against PTSD, a potential new weapon emerges: a nasal spray loaded with neuropeptide Y.
When you do something with all your heart and mind, you do it with "meraki." When we lack this feeling, it can lead to burnout.
The key to its success lies not in its understanding of technology, but in its understanding of human nature.
The farther away they get, the smaller distant galaxies look. But only up to a point, and beyond that, they appear larger again. Here’s how.