Astrobiology Glossary

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Term Definition
Quark A basic building block of protons, neutrons, and other elementary particles.
Quasar The brightest type of active galactic nucleus, believed to be powered by a supermassive black hole. The word 'quasar' is derived from quasi-stellar radio source, because this type of object was first identified as a kind of radio source. Quasars also are called quasi-stellar objects (QSOs). Thousands of quasars have been observed, all at extreme distances from our galaxy.
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Quote of the Day

Anyone who has never made a mistake has never tried anything new.
- Albert Einstein

Quiz Me

Which order is the bat classified in?
A.Rodentia
B.Artiodactyla
C.Hyracoidae
D.Chiroptera
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Fact of the Day

The primary purpose of growing rice in flooded paddies is to drown the weeds surrounding the young seedlings -- rice can, in fact, be grown in drained areas.

Word of the Day

venal
Pronunciation: /VEE-nul/
adj : capable of or characterized by bribery or corruption
"Unfortunately, venal policemen and venal politicians are common stories on the news."