12/12/2023 0 Comments Neptune pictures james webb![]() ![]() This period has been dubbed the " Cosmic Dark Ages." Eventually the hydrogen began coalescing to form stars and galaxies, lighting up the universe and ionizing the neutral hydrogen. Shortly after the Big Bang there were no stars and galaxies, only a vast fog of neutral hydrogen. That science involves seeing back in time to a distant era known as the Epoch of Reionization. ![]() Fortunately, "As we looked at the science, we realized that a diameter of 350 meters would be sufficient to give us the science that we want to get," Bandyopadhyay said. The original plan was for an even larger telescope, 0.6 miles (1 km) in size, but the sheer scale of that instrument proved unfeasible because of the total mass that would need to be launched from Earth. (That would be a 1,150 foot wide dish in a 0.8 mile crater.) "We're wanting to build a 350-meter-diameter radio telescope in a 1.3-kilometer-wide crater on the far-side of the moon," Bandyopadhyay, who is a robotics technologist, told. ![]() However, a brand new concept is now being evaluated called the Lunar Crater Radio Telescope, which is led by Saptarshi Bandyopadhyay of NASA's Jet Propulsion Laboratory in California. Burns has been working on a plan for a radio telescope on the moon since the 1980s, but ultimately FARSIDE wasn't selected for recommendation by the decadal survey. A proposal for a lunar telescope named FARSIDE, led by Jack Burns of the University of Colorado, Boulder, was submitted as a potential 'probe-class' mission costing $1 billion to $2 billion. Kahn led one of the panels of the recent astronomy and astrophysics decadal survey (Pathways to Discovery in Astronomy and Astrophysics for the 2020s), focusing on electromagnetic observations from space. ![]()
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