Fermi mission creates 14-year time-lapse of the gamma-ray sky

The cosmos comes alive in an all-sky time-lapse movie made from 14 years of data acquired by NASA's Fermi Gamma-ray Space Telescope. Our sun, occasionally flaring into prominence, serenely traces a path through the sky against ...

Telescope Array detects second-highest-energy cosmic ray ever

In 1991, the University of Utah Fly's Eye experiment detected the highest-energy cosmic ray ever observed. Later dubbed the Oh-My-God particle, the cosmic ray's energy shocked astrophysicists. Nothing in our galaxy had the ...

'A new lens' into the universe's most energetic particles

Showers in bathrooms bring us comfort; showers from space bring astrophysicists joy. Osaka Metropolitan University scientists have observed, with their novel method, cosmic-ray extensive air showers with unprecedented precision, ...

Euclid test images tease of riches to come

Euclid's two instruments have captured their first test images. The mesmerizing results indicate that the space telescope will achieve the scientific goals that it has been designed for—and possibly much more.

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