The original double-slit experiment, first performed in 1801 by Thomas Young, showed that light behaves as a wave. Later ...

This whole thing works because light isn't affected by gravitational waves. While the powerful waves in space can warp matter of all kinds, light remains unchanged. Scientists expect that LIGO ...

The original double-slit experiment, conducted by Thomas Young in 1801, revealed that light behaves as a wave. Subsequent ...

and also shorter-wavelength ultraviolet and longer-wavelength infrared light, invisible to the eye but detectable by certain telescopes on Earth and in space—and by the still longer waves of ...

So what’s the story here traveller? Light travels across space, but what about sound? Although sound waves can’t travel in space, light waves can. That’s why everything we know about the ...

The question “are we alone in the universe?” has fascinated people for centuries. In 1959 two Cornell University physicists described how we might answer that question through interstellar ...

As those bodies sweep around each other, they compress and expand the structure of space-time itself, creating a disturbance that travels out at the speed of light. Gravitational waves from ...

“This applies whether it’s observing magnetic waves in the sun’s atmosphere – which can influence space weather ... detailed analyses of sea waves, light waves from the sun and wind ...

They block horizontally polarized light waves that bounce off surfaces such as water. In space, when a light wave hits a cloud of gas, that polarizes it and changes its vibration direction.

The large outflows move through material, creating shock waves in space that heat the material; as the material cools, it produces light—revealing objects like the glowing orange outflow above.