![logo](/img/xlogo_small.webp.pagespeed.ic.Rif_4bzYCq.webp)
Privacy
Tauá | |
---|---|
State | |
Country | |
Capital | |
Population | 56202 |
Tau Ceti f is a super-Earth or mini-Neptune orbiting Tau Ceti that was discovered in 2012 by statistical analyses of the star's variations in radial velocity, based on data obtained using HIRES, AAPS, and HARPS. It is of interest because its orbit places it in Tau Ceti's extended habitable zone, but a 2015 study implies that there may not be a detectable biosignature because it has only been in the temperate zone for less than one billion years.
Huntsville | |
---|---|
State | |
Country | |
Capital | |
Population | 0 |
Huntsville is a city in the Appalachian region of northern Alabama. It is the county seat of Madison County but extends west into neighboring Limestone County and south into Morgan County.It was founded in 1805 and became an incorporated town in 1811. The city grew across nearby hills north of the Tennessee River, adding textile mills, then munitions factories, NASA's Marshall Space Flight Center and the United States Army Aviation and Missile Command nearby at the Redstone Arsenal. The National Trust for Historic Preservation named Huntsville to its "America's Dozen Distinctive Destinations for 2010" list.