Question: I assume that if the VLA antenna mounts are in a mathematical plane it would be easier to…
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How is Antenna Efficiency Defined and How Can One Use Measurements of the Sun to Calculate It?
Question: I am an undergraduate Physics student carry out a research to determine the brightness temperature of the sun…
Why Do Pictures of Stars From Space Telescopes Appear Point-Like Rather Than Round?
Question: Can you get a video image of a twinkling star in space? Also if stars do not twinkle…
Why Does the Very Large Array Have Different Antenna Configurations?
Question: On a tour of the VLA I learned of the 4 configurations, but I couldn’t get an answer…
How do the Cryogenic Cooling Systems Work on the VLA Receiving Systems?
Question: Can you please explain in detail how the cryogenic system for telescope amplifier cooling works? I was recently…
Are There Measurements of the Affects of Global Climate Change on Radio Observatory Operation?
Question: Dear sirs, i am a journalist and write the article, how global climate change affects space-based observations. does…