microscopic clocks tagged posts

Microscopic ‘Clocks’ time distance to source of Galactic Cosmic Rays

Vast bubble in the Large Magellanic Cloud, a satellite galaxy to the Milky Way visible from the Southern Hemisphere, was formed by the explosive death of one or more of the cluster of massive stars inside the bubble. Cosmic rays reaching Earth are created and accelerated by similar explosions. Credit: Gemini South Telescope in Chile. Composite by Travis Rector of the University of Alaska Anchorage

Vast bubble in the Large Magellanic Cloud, a satellite galaxy to the Milky Way visible from the Southern Hemisphere, was formed by the explosive death of one or more of the cluster of massive stars inside the bubble. Cosmic rays reaching Earth are created and accelerated by similar explosions. Credit: Gemini South Telescope in Chile. Composite by Travis Rector of the University of Alaska Anchorage

Supernova exploded in our ‘galactic neighborhood’ within the last few million years Most of the cosmic rays arriving at Earth from our galaxy come from nearby clusters of massive stars, according to new observations from the Cosmic Ray Isotope Spectrometer (CRIS), an instrument aboard NASA’s Advanced Composition Explorer (ACE) spacecraft...

Read More