Space Reference Libraries

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Whirlpool Galaxy M51
2004-10-19 04:45:40

Whirlpool Galaxy -- Discovered 1773 by Charles Messier. The famous Whirlpool galaxy M51 was one of Charles Messier's original discoveries: He discovered it on October 13, 1773, when observing a comet, and described it as a "very faint nebula, without stars" which is difficult to see. Its companion, NGC 5195, was discovered in 1781 by his friend, Pierre Mchain, so that it is mentioned in...

Crab Nebula
2004-10-19 04:45:40

Crab Nebula -- The Crab Nebula (Messier 1, NGC 1952) is the object the which started Charles Messier logging non-cometary objects on his Messier Catalog. It is the expanding cloud of gas thrown off in the explosion that gave rise to the 1054 supernova recorded by Chinese astronomers, now more than 6 light years across (the nebula is currently expanding at 1000 km/sec and the total mass of...

Space Telescope Science Institute STScI
2014-01-11 00:00:00

Space Telescope Science Institute -- STScI mission statement: We bring the cosmos to Earth We carry out this vision by empowering the astronomy community to produce new scientific discoveries and by bringing the benefits of this research to the public. We make the best astronomical facilities productive for the largest number of scientists, and we promote new missions with the greatest...

Palomar Observatory
2004-10-19 04:45:40

Palomar Observatory -- Owned and operated by the California Institute of Technology, a privately endowed educational and research institution located in Pasadena, California, and is used to support the scientific research programs of Caltech's faculty and students. The principal instruments at Palomar are the 200-inch Hale Telescope, the 48-inch Oschin Telescope, the 18-inch Schmidt...

Word of the Day
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'karpos', fruit.