The image shows a good example of the phenomenon Some of the best views of Earth come from beyond our home planet, as ...

In reality, a green rim is there at every sunset. It's just usually so thin, and so brief (a second or two), that our eyes ...

A Cosmic Cat’s Paw. Emission nebula NGC 6334, otherwise known as the Cat’s Paw Nebula, lies about 4,000 light-years away. Instruments on the James Webb Space Telescope recently took a detailed look at ...