The moon's steadfast illumination of our night sky has been a source of wonder and inspiration for millennia. Since the first satellite images of its surface were taken in the 1960s, our understanding of Earth's companion ...
An international team of researchers has decoded the genome of a creature whose evolutionary history is both enigmatic and illuminating: the African coelacanth. A sea-cave dwelling, five-foot long fish with limb-like fins, ...
Biotechnology
Apr 17, 2013
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(PhysOrg.com) -- In the 15th century, when Europeans first began moving people and goods across the Atlantic, a microscopic stowaway somehow made its way to the caves and monasteries of Bavaria.
Cell & Microbiology
Aug 22, 2011
5
2
People who were killed, injured or bereaved in the 2008 Sichuan earthquake had the cruel misfortune to be victims of an event that probably occurs just once in four millennia, seismologists said on Sunday.
Earth Sciences
Sep 27, 2009
3
0
Researchers at the University of Adelaide have found that a lake on an island off the coast of Queensland has been relatively untouched by changes in climate for the past 7000 years, and has so far also resisted the impact ...
Environment
Jun 4, 2013
4
0
(PhysOrg.com) -- A fundamental shift in the Indian monsoon has occurred over the last few millennia, from a steady humid monsoon that favored lush vegetation to extended periods of drought, reports a new study led by researchers ...
Earth Sciences
Mar 15, 2012
0
0
(PhysOrg.com) -- Some of the earliest evidence of prehistoric architecture has been discovered in the Jordanian desert, providing archaeologists with a new perspective on how humans lived 20,000 years ago.
Archaeology
Feb 20, 2012
2
0
Around 1630 BC, a super-volcano blew apart the Aegean island of Santorini, an event so violent that some theorists say it nurtured the legend of Atlantis.
Earth Sciences
Feb 1, 2012
2
0
(PhysOrg.com) -- A fast-moving glacier on the Greenland Ice Sheet expanded in a geologic instant several millennia ago, growing in response to cooling periods that lasted not much longer than a century, according to a new ...
Earth Sciences
Dec 14, 2011
9
0
New research sheds light on why, after 300,000 years of domination, European Neanderthals abruptly disappeared. Researchers from the University of Cambridge have discovered that modern humans coming from Africa swarmed the ...
Archaeology
Jul 28, 2011
16
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A millennium (plural millennia) is a period of time equal to one thousand years (1,000)—from the Latin phrase mille, thousand, and annus, year—often but not necessarily related numerically to a particular dating system.
For example, a millennium could start at the beginning of the year 289 and finish at the beginning of the year 1289.
Sometimes, it is used specifically for periods of one thousand years that begin at the starting point (initial reference point) of the calendar in consideration (typically the year "1"), or in later years which are whole number multiples of a thousand years after it. The term can also refer to an interval of time beginning on any date. Frequently in the latter case (and sometimes also in the former) it may have religious or theological implications (see millenarianism). Sometimes in religious use, such an interval called a "millennium" might be interpreted less precisely, i.e., not always being exactly 1000 years long.
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