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White to move and mate in two #638 - the SPHEREx Space Telescope [1]
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Date: 2025-03-11
The NASA SPHEREx space telescope will launch tonight at 11:10 p.m. EDT from Vandenberg Space Force Base in CA aboard a Falcon 9 rocket. The launch has been delayed several times for various reasons.
SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a near-infrared space observatory that will perform an all-sky survey and measure the spectra of ~450 million galaxies at near-infrared wavelengths 0.75 to 5.0 µm over the next 2 years.
Its goals -
Create a 3D map of 100s of millions of galaxies in 102 infrared wavelengths and study inflation, the rapid expansion of the universe after the big bang.
Measure the collective glow of galaxies near and far, including ones not observed before.
Search the Milky Way galaxy for water, CO2 and other essential ingredients for life.
Telescope design -
SPHEREx will orbit Earth in a Sun-synchronous polar orbit at 650 km altitude, 98 minute period, directly over the Earth’s day-night (terminator) line.
The telescope will be pointed away from Earth and at least 91° away from the Sun to block out heat and light.
Now let’s search far and wide for the solution to today’s puzzle composed in 1959 by noted American chess composer George Nelson Cheney (1837-1861). He died young in the disastrous battle at Bull Run.
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