×
Log in
Upload File
Most Popular
Study
Business
Design
Technology
Travel
Explore all categories
The top documents tagged [unbound universe]
Slipher’s Spectra of Nebulae Lowell Telescope – near Flagstaff Arizona – provided spectra of ~50 nebulae – showing 95% of them were moving away from Earth
216 views
Slipher’s Spectra of Nebulae
29 views