Asteroid mining is a potential trillion-dollar industry, but before any prospectors start fitting their mules for spacesuits, surveying is going to be more important than extraction. To help find out ...

Two recent events – one legal and the other technological – have brought asteroid mining a step closer to reality. The legal development came about when the Senate Commerce, Science and Transportation ...

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ANOTHER point was also very obvious to those who are familiar with these inquiries, namely, that if these prominences really consisted of gas, by the use of a powerful spectroscope it was perfectly ...

Learn about color and how to create a spectroscope using simple materials. What is color? Learn about light and wavelengths and what creates color in this episode of Camp GPB. Then learn how to build ...

Amateur solar observing has an exciting new tool. The Lhires Lite spectroscope breaks sunlight into a rainbow of colors crossed by dark lines. For two centuries, professional astronomers have used ...

A gamma-ray spectroscope aboard Danuri, Korea's first lunar orbiter, succeeded in measuring a gamma-ray explosion 2.4 billion light-years away. A research team led by Dr. Kim Kyeong Ja published the ...

The fate of the universe hinges on the balance between matter and dark energy: the fundamental ingredient that drives its accelerating expansion. New results from the Dark Energy Spectroscopic ...

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IX. NOW let me state to you how the discovery mentioned on p. 12 was finally established by Kirchhoff. In my notice of the spectroscope in the earlier articles, I had so much to say that there were ...