Scientists have since worked hard to pinpoint how fast the Universe is expanding, and how long ago the Big Bang took place. It’s a compelling tale, with lots of twists and turns. But ...

The expansion of the Universe is not constant ... Our Sun is on one of the spiral arms as shown in the diagram: The Sun's orbital speed is determined almost entirely by the gravitational pull ...

Astronomers Are Baffled To Find That the Universe Is Expanding Too Fast; 'Not What We Expected' Astronomers routinely ...

An illustration of galaxies curving the fabric of space-time in an expanding universe. A new theoretical paper proposes that cosmic expansion may not be a given — it can abruptly reverse and change ...

Nobel laureate Dr. James Peebles will discuss the still-unanswered questions regarding the expansion of the universe, dark matter and more. We have good evidence that the universe we see around us is ...

Figure caption, Lower diagram shows spectrum of light redshifted from a distant galaxy moving away from the Earth The upper diagram shows the absorption spectrum from a stationary galaxy with one ...

The universe appears to be expanding at a staggering speed, much faster than expected. A recent study reinforces this ...

The universe is expanding. This was the great revelation of the 20th century, thanks to astronomer Edwin Hubble, whose work showed that galaxies are moving away from us, with more distant galaxies ...