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 ...

If you buy something using links in our stories, we may earn a commission. Learn more. Yesterday morning we made a spectroscope-- a device that breaks light down into a rainbow of component colors -- ...

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 ...

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 ...

IF name the spectroscope as the most important scientific invention of the latter half of this century, I shall not fear to be accused of exaggeration. Photography has rendered vast services in ...

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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 ...