Data from the Solar Ultraviolet Imager here reveals the amount of activity on the solar surface. A coronal mass ejection in the upper left hand corner of the image shows one such energetic outburst by our local star.
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NASA's Hubble Space Telescope found definitive evidence of a dwarf galaxy merging with the Milky Way just 2 billion years after the Big Bang.
Don't look up.
The cosmic accelerator can push protons beyond one quadrillion electric volts.
The observatory recently began its 10-year survey of the southern sky using the world's largest digital camera.
The otherwise invisible object revealed itself with a flash of light as it munched on its stellar dinner.
