Astronomers have identified a white dwarf star, WD J1330+6435, that could appear green to human eyes, challenging the ...

Despite billions upon billions of stars scattered across the cosmos, astronomers had never convincingly identified a green star. Now, they’ve found one. And the explanation is stranger than you might ...

Infrared light is invisible to us. Yet under the right conditions, pulses of near-infrared light can give rise to a visible image in the eye—one that behaves in ways that defy intuition. ICTER ...

Add one double bond to a structural formula. That double bond connects with another double bond to become conjugated.Even if it looks like a small change, the light that the molecule absorbs may ...