Astronomy on MSN
June 24, 1881: First photographic spectrum of a comet
On the evening of June 24, 1881, Sir William Huggins directed his reflector, equipped with spectroscopic and photographic ...
Radio observatories like the Green Bank Telescope are in radio quiet zones that protect them from interference. NRAO/AUI/NSF, CC BY Radio telescopes are facing a problem. All satellites, whatever ...
The Astronomy Geographic Advantage Act, 2007 (Act No. 21 of 2007 – “the AGA Act”) was promulgated on 17 June 2008, in Government Gazette No. 31157 and became operational on the 24th of April 2009. On ...
Quasi-periodic oscillations (QPOs) are a rare phenomenon in active galactic nuclei. They have been observed to occur at periods ranging from minutes to hours, days, weeks, and even years across the ...
Cosmological parameter estimation and power spectrum modelling lie at the heart of modern efforts to decipher the composition, history and large-scale geometry of the Universe. Parameter estimation ...
The primordial power spectrum describes the distribution of curvature perturbations generated during cosmic inflation as a function of comoving wavenumber. Inflationary models naturally yield an ...
Quasi-periodic oscillations (QPOs) are a rare phenomenon in active galactic nuclei. They have been observed to occur at periods ranging from minutes to hours, days, weeks, and even years across the ...
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