Distant Galaxies Crash to Produce Massive Sonic Boom, Could Reveal Secrets About the Universe: Report
A galaxy collision in Stephan’s Quintet has created a powerful shockwave, providing vital data on galactic evolution.
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Scientists detect the most powerful cosmic rays ever — and their unknown source could be close to Earth
To find the cosmic ray electrons, the researchers used the HESS observatory ... Just as a plane traveling faster than the ...
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What was that bright fireball seen over the East Coast?
Thousands of fireballs — or pieces of cosmic debris — occur annually around the world, 24 hours a day. If a fireball fragments and sonic booms are heard, the event is known as a “bolide.” ...