唠叨
发表于 2025-3-30 09:28:46
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opalescence
发表于 2025-3-30 13:54:55
Through the Eyes of the Sloan Digital Sky Survey... ...Probing Deeper into the Milky Way Galaxyotometry for galaxies and stars. This now comprises more than 200 million objects over 8,000 square degrees of the northern sky, as well as medium-resolution spectroscopy for over one million galaxies, quasars, and stars in the Milky Way. The original SDSS, now known as SDSS-I, formally came to an e
sacrum
发表于 2025-3-30 18:31:22
Reinventing the Hubble Space Telescope... ...The Next Hubble Servicing Missionities through the year 2013. NASA Administrator Michael Griffin announced plans for a fifth servicing mission to Hubble on Tuesday, 31 October 2006. “We have conducted a detailed analysis of the performance and procedures necessary to carry out a successful Hubble repair mission over the course of t