botany
发表于 2025-3-28 17:46:26
Through the Eyes of the Sloan Digital Sky Survey... ...Probing Deeper into the Milky Way Galaxyore than 300 individual scientists, have continued their journey of discovery with the first extension of SDSS, known as SDSS-II. SDSS-II includes three separate mini-surveys — if one can imagine anything ‘mini’ about SDSS — which effectively split the available time on the ARC 2.5m telescope on Apache Point, New Mexico.
lanugo
发表于 2025-3-28 22:25:49
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遗传学
发表于 2025-3-29 01:20:22
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拥护者
发表于 2025-3-29 06:45:12
A year in News... ...and Pictures: April 2006 – March 2007om a careful study of two huge galaxy surveys, the Sloan Digital Sky Survey and the Two-Degree Field Galaxy Redshift Survey, combined with precise locations of known voids, large spaces lacking in bright galaxies.
BLAZE
发表于 2025-3-29 11:05:26
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embolus
发表于 2025-3-29 14:09:47
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amnesia
发表于 2025-3-29 17:14:01
High-Stakes Astronomy at Low Frequencies... ...Opening Up a New Wavelength Frontiereresting to study. This is because anything active in the universe gives off a range of wavelengths and frequencies, including low-frequency signals below 400 megahertz (MHz). This includes our Sun, which puts out radio signals across a broad range of frequencies. The planet Jupiter does interesting
sultry
发表于 2025-3-29 21:37:01
Where Do All the Stars Come from?... ...New Views of Star Formation with the Spitzer Space Telescopese of small clouds) to tens of thousands of stars (in the case of the largest and most massive clouds) are being born right now. These clouds range in size from cores that are 100,000 times the size of the Solar System and a mass of several suns (solar masses), to giant clouds more than ten million
伴随而来
发表于 2025-3-30 01:58:00
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shrill
发表于 2025-3-30 04:37:22
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