Alternative Gravity Theories
Is gravity really just a force—or is it geometry? From Newton and Einstein to the most radical alternative theories, explore how the shape of spacetime may hold the key to understanding our expanding universe. […]
Tag: σκοτεινή ενέργεια
The Galaxy That Wears a Ring
At first glance, NGC 6505 looks like a fairly typical elliptical galaxy in the constellation Draco, first spotted way back in the 1800s. […]
UPDATE: The Euclid Space Telescope
The European Space Agency has given final approval for the construction of the Euclid space telescope. […]