In 1975, a young engineer in the company that made Kodak film took the first picture on a handheld digital camera.
In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.
The Invisible Becomes Visible: Scientists May Have Finally Seen Dark Matter ...
Critics argue the satellites, billed as a way to harness solar energy at night, could hamper sky observations and may pose a ...
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