Sentences with phrase «collapsing under gravity»

Along with black holes, neutron stars are the result of stars collapsing under gravity once their fuel burns out, until their density is about the same as that of the nucleus of an atom, at which point the protons and electrons «melt» into pure neutrons.

A cable made of carbon nanotubes, which have the highest known ratio of tensile strength to weight, would have to be so thick at the far end that it would collapse under gravity.

An extremely compact ball of neutrons created from the central core of a star that collapsed under gravity during a supernova explosion.

The idea behind the death of a massive star is relatively straightforward: It gets old, runs out of fuel, collapses under gravity and then explodes as a supernova.

All stars are believed to form within clouds of gas and dust that collapse under gravity.

The map stretches halfway back to the beginning of the universe and shows how dark matter has grown increasingly «clumpy» as it collapses under gravity.

Not exact matches

Stars are born when a cloud of gas hundreds of times more massive than our Sun begins to collapse under its own gravity.

When the core reaches about 1.5 times the mass of the Sun, it collapses under the influence of its own gravity and forms a neutron star.

You probably know that black holes are stars that have collapsed under their own gravity, producing gravitational forces so strong that even light can't escape.

Such stars get so hot that they convert gamma rays, whose high energy helped keep the star from collapsing under its own gravity, into electrons and their antimatter counterparts, positrons.

The traditional model of how stars and their planets form dates back to the 18th century, when scientists proposed that a slowly rotating cloud of dust and gas could collapse under its own gravity.

This gas gives rise to newborn stars — it gradually collapses under the force of its own gravity until it is sufficiently compressed to form a protostar — the precursor to a star.

New simulations suggest that dense swarms of boulders collapsed under their own gravity to make the building blocks of our solar system.

«What probably happens is that after the supernova, the remaining stellar core collapses under its own gravity to form a black hole,» Reeves says.

Impey speculates that the dark matter which lurks in these dim galaxies could make up a substantial chunk of the extra mass that would be needed to make the Universe dense enough to eventually collapse under its own gravity.

Scientifically, Hawking's name will forever be tied to black holes, the ultraintense gravitational fields left behind when massive stars collapse under their own gravity into infinitesimal points.

When a massive star collapses under its own gravity during a supernova explosion it forms either a neutron star or black hole.

Unlike run - of - the - mill black holes that form from collapsing stars, such primordial black holes could have formed when dense regions of the very early universe collapsed under their own gravity, some theories suggest.

When too much matter is put into too small a space, it collapses under its own gravity and forms a black hole.

When a star runs out of hydrogen fuel its core collapses inward under gravity and, hitting rock bottom, sends out a shockwave that blasts away the star's outer layers as a supernova.

Dimitrios Psaltis, an astrophysicist at the University of Arizona, is helping to test what may be general relativity's most extreme prediction: that large - enough stars will eventually collapse under their own gravity to form these infinitely dense objects.

Eventually, these lumps became large enough and dense enough to collapse and form galaxies, which themselves clumped under the influence of gravity to form clusters and superclusters of galaxies, and so on.

They simulated two streams of interstellar gas coming together to form a cloud that, over a few million years, collapsed under its own gravity to make a cluster of stars.

The protoplanetary disc took shape when a spherical cloud of ultra-cold gas and dust began to collapse under its own gravity.

NAKED singularities and cosmic censorship may sound like lurid terms from the tabloids, but in fact these phrases lie at the heart of a troubling question for modern cosmology: what happens when our known laws of space and time break down, as happens in the final moments of a star collapsing to a point under its own gravity?

Decades of research indicate that when a star heftier than eight suns burns up its nuclear fuel, it will begin to collapse under its own gravity, starting at the core.

Once a star has exhausted its fuel, it will collapse under its own gravity.

In the modern universe, black holes typically form from massive stars that collapse under their own gravity at the ends of their lives.

Dense pockets of material in these clouds collapse under their own gravity and grow by accumulating more and more star - forming gas from their parent clouds.

As a ball of dust and gas contracts under its own gravity, it begins to shrink and its core begins collapsing faster and faster.

We know that these huge clouds collapse under for force of gravity to form stars.

A black hole is formed when a massive star starts running out of nuclear fuel at its interior (mainly hydrogen and helium) and begins to collapse under its own gravity.

The core of the star, with 40 percent more mass than our Sun, collapses under its own gravity to a sphere only about 10 miles in diameter, composed mostly of neutrons.

The more numerous faint stars are still in the process of collapsing under their own gravity, but have become hot enough in their centers to be self luminous bodies.

These concentrations become ever more dense until they collapse inward under gravity to form protoplanets.

Groups of stars such as those in Orion are born when a cloud of gas hundreds of times more massive than our Sun begins to collapse under its own gravity.

Those gamma rays help to keep the star from collapsing under its own gravity.

«The atmosphere does not collapse under the downward pull of gravity because of the energy embedded in the movement of the air molecules.