Home > Astronomy, General Astronomy, Observatories & Facilities > Keeping an Eye on the Universe

Keeping an Eye on the Universe


Astronomers from the California Institute of Technology and the University of Arizona have released the largest data set ever collected that documents the brightening and dimming of stars and other celestial objects – 200 million in total.

The night sky is filled with objects such as asteroids that dash across the sky and others – such as exploding stars and variable stars – that flash, dim, and brighten. Studying such phenomena can help astronomers better understand the evolution of stars, massive black holes in the centers of galaxies, and the structure of the Milky Way.

These types of objects also were essential for the recent discovery of dark energy – the mysterious energy that dominates the expansion of the universe – that earned last year’s Nobel Prize.

http://uanews.org/node/43845

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