Mysterious force's long presence
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The "dark energy" speeding up cosmic expansion has been with us for at least nine billion years, astronomers say.
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The mystery of how the darkest galaxies in the Universe came to exist may be solved.
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A cosmic explosion that seems to have come out of nowhere&#x2014;thousands of light-years from the nearest collection of stars&#x2014;has left astronomers baffled.
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Dotted around the globe are shadowy, short-range transmitters beaming strange radio messages across the planet. The messages are indecipherable, and often unlistenable. Nonetheless, they have their fans. By Jason Walsh.
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Evidence is found to tie the structure of the Universe to ripples in the density of matter at the dawn of time.
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Force Protection learns that size really does matter.
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Fighting an enemy as invisible as he is deadly
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Recent research is providing new insight into experiences more often left to paranormal explanations.
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I saw it when I popped the lid of the supers - I couldn't have missed it, being nearly the size of my palm.  A common orb spider, hiding in these old unused honey supers.  It and about eighty more of its kind have built webs all around my equipment.  I spent the most of a week fighting them.  Now I see that there are some important lessons to be learned.
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For months, even years now, it has been speculation, an educated guess, one that was well-fueled but never well answered -- until now.
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Astronomers sifting through  the radiation signals emanating from a distant black hole have separated the  emission into its two component parts, a key step in understanding how such  massive objects work.
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An international team of astronomers believe they have solved a mystery that has been perplexing scientists for 100 years -- the origin of cosmic rays.
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Nikola Tesla offers his explanation of the phenomenon known as ball lightning. More than a century later, we're still not sure it's real. Compiled by Tony Long.
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By RANDOLPH E. SCHMID Associated Press  Scientists discover exotic creatures more mysterious than most can imagine.   WASHINGTON -- Peering deep into the sea, scientists are finding creatures more mysterious than many could have imagined.
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They have become legendary in UFO circles. Huge,  silent-running Flying Triangles have been seen by ground observers creeping  through the sky low and slow near cities and quietly cruising over  highways.
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The Antikythera Mechanism, an ancient device that's baffled scientists for a century, finally yields its secrets. In Gear Factor.
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One can only wonder now, though, what ethereal forces might have been at work that day. Did Tedford gaze around musty old Memorial and fantasize about a juggernaut of his own creation?