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An all-time favorite of skywatchers on both hemispheres
just another day on the moon
Astronomers using data from NASA's Hubble Space Telescope caught two clusters full of massive stars that may be in the early stages of merging
Palomar 2 is an exception to this
Sun - Blue Sun (Extreme UV) Material:Stretched Canvas An all-time favorite of skywatchersExtreme Ultraviolet Imaging Telescope (EIT) image in resonance lines of eight and nine times ionized iron (Fe IX X) at 171 Angstroms in the extreme ultraviolet showing the solar corona at a temperature of about 1 million K. This image was recorded on 11 September 1997. It is dominated by two large active region systems, composed of numerous magnetic loops.
