Explanation: The distance to the swirling grand design spiral M100 is causing quite a stir among astronomers. Many believe that the Hubble Space Telescope's recent distance measurement to this galaxy accurately calibrates the expansion rate of the universe. Others believe this distance measurement is misleading. The universe's expansion rate is usually given as a quantity called "Hubble's constant", a factor dividing well-measured recession velocity of a galaxy to give actual distance. Scientific debate over the value of Hubble's constant has been ongoing since it was first measured by Edwin Hubble in 1929. A real live debate involving the value of Hubble's constant titled "The Scale of the Universe" will occur in April 1996 in Washington, DC.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: universe - M 100 - Rasshirenie Vselennoi - Postoyannaya Habbla - spiral'naya galaktika Publikacii so slovami: universe - M 100 - Rasshirenie Vselennoi - Postoyannaya Habbla - spiral'naya galaktika
Sm. takzhe: Spiral'naya galaktika NGC 6744 Temnaya materiya v modeli Vselennoi M106: spiral'naya galaktika so strannym yadrom NGC 247 s druz'yami Licom k NGC 6946 M83: zvezdnye potoki i tysyacha rubinov Spiral' vremeni Vse publikacii na tu zhe temu >>