Sentences with phrase «holes formed during»

An intriguing alternative view is that dark matter is made of black holes formed during the first second of our universe's existence, known as primordial black holes.
The supermassive black hole formed during the earliest moments of the universe, which has researchers puzzled over how it got to be so big.
After analyzing the quasar, the scientists found a lot of the hydrogen surrounding it is neutral, which suggests that the supermassive black hole formed during the reionization phase after the Big Bang.

Not exact matches

When a massive star collapses under its own gravity during a supernova explosion it forms either a neutron star or black hole.
Although Albert Einstein had already predicted the existence of gravitational waves, their existence was not actually proven until fall 2015, when highly sensitive detectors received the waves formed during the merging of two black holes.
The Antarctic ozone hole forms and expands during the Southern Hemisphere spring (August and September) because of the high levels of chemically active forms of chlorine and bromine in the stratosphere.
During the final fraction of a second, the two black holes collide into each other at nearly one - half the speed of light and form a single more massive black hole, converting a portion of the combined black holes» mass to energy, according to Einstein's formula E = mc2.
A long - standing question in astrophysics is whether the universe's very first black holes came into existence less than a second after the Big Bang or whether they formed only millions of years later during the deaths of the earliest stars.
Those stars could never have evolved that close to a black hole, which has the mass of 4,300,000 suns, because the black hole's gravity would have prevented gas from collapsing to become a star.47 However, those stars could have formed in a much denser environment, before space was stretched out during creation week.
Such holes are common during Solar Minimum, and they require no sunspots to form.
If the binary isn't disrupted during the two collapse events, this forms an isolated black - hole binary.
Many of us fall victim to the nasty holes in the road that form during the temperature changes at the end of the winter.
The Great Blue Hole shown is one of the top attractions in Belize and is a mecca for those wanting to dive among its giant stalactites and stalagmites, which were formed during the last Ice Age.
The Great Blue Hole was formed sometime during one of the ice ages that covered the North American continent several million years ago.
The limestone walls of the hole were formed during the last Ice Age when water levels in the area were much lower.
The hole, which was formed thousands of years ago during the last ice age, is a UNESCO World Heritage Site and divers can enjoy it at their own pace, or join one of the many dive excursions that take in the Great Blue Hhole, which was formed thousands of years ago during the last ice age, is a UNESCO World Heritage Site and divers can enjoy it at their own pace, or join one of the many dive excursions that take in the Great Blue HoleHole.
Like other sea - holes or «vertical caves,» the Great Blue Hole in Belize's Lighthouse Reef actually formed on dry land, during a past ice age when the sea level was a lot lower than it is today.
We'll probably never know, as the first British sculpture generally acknowledged to have a hole through it, Hepworth's Pierced Form of 1931, was destroyed during the war.
In the early 1980s, scientists discovered a hole in the ozone layer that forms over Antarctica during the Southern Hemisphere's spring months, from September to November.
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