Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

one big question about the big bang remains: “What was it that banged?” The answer lies in his theory of cosmic inflation. “It sets up the conditions for the big bang—like a prequel ...

Scientists are inclined to award the palms of victory to the theory of the Big Bang. Moreover, many of the things described in Cosmology Now have lost their former, beautiful simplicity. For instance, ...

The Big Bang theory is our general picture of the history ... A full evaluation of the ability of those galaxies to "break" cosmology would have to wait for a more precise measurement of their ...

cosmology was an emerging discipline, grappling with two competing theories: the Big Bang theory and the steady-state model. The Big Bang theory suggested that the universe had a specific ...

The widely accepted cosmological model begins with the Big Bang, followed by a rapid phase of inflationary expansion. This theory aligns well with observations of the cosmos such as the ...

Physicists are still seeking such a theory—a single explanation for both the large-scale force of gravity and the short-range forces inside the atom. Catching these faint echoes of the big bang ...

In the history of science few developments have been more important than the advent of the new heliocentric cosmology in the sixteenth and seventeenth centuries. Whereas most of the ancient Greeks ...

Others took notice and named his theory "big bang." LeMaitre's ideas opened more questions, many of which forced physics and astronomy together: What was that primordial atom like? Why would it ...