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4 Ways The Universe Might End. Artist’s illustration of the brightest galaxy in the universe, shining with light equivalent to more than 300 trillion sunlike stars.

4 Ways The Universe Might End

(via NASA) If there’s one thing scientists love discussing more than the beginning of the universe, it’s the end. There are literally hundreds of known stellar events that could obliterate the life on our planet before we even knew what hit us. The meteor that touched down in Russia kind of cemented that fact; however, the chances of Earth suffering a life-ending global catastrophe are actually rather slim.

But we know that it is coming. The end of everything else though, is a little bit more difficult to predict; however, that won’t stop scientists from speculating and theorizing. Cosmic 'Nuclear Pasta' May Be Stranger Than Originally Thought. The crusts of neutron stars — cosmic cousins of black holes — possess a weird form of matter known as "nuclear pasta.

Cosmic 'Nuclear Pasta' May Be Stranger Than Originally Thought

" Now, scientists have found that nuclear pasta may be even stranger than previously thought, forming defects that bond pieces together into complex, disorderly shapes. This complex nuclear pasta could ultimately doom the powerful magnetic fields seen from neutron stars, researchers say. Rosetta's Lander Has Found Organic Molecules on a Comet  Neutron Stars: Definition & Facts. Neutron stars are created when giant stars die in supernovas and their cores collapse, with the protons and electrons essentially melting into each other to form neutrons.Credit: NASA/Dana Berry Neutron stars are city-size stellar objects with a mass about 1.4 times that of the sun.

Neutron Stars: Definition & Facts

Born from the explosive death of another, larger stars, these tiny objects pack quite a punch. Let's take a look at what they are, how they form, and how they vary. A stellar phoenix When stars four to eight times as massive as the sun explode in a violent supernova, their outer layers can blow off in an often-spectacular display, leaving behind a small, dense core that continues to collapse. Neutron stars pack their mass inside a 20-kilometer (12.4 miles) diameter. The Science of 'Interstellar' Explained (Infographic) Warning: SPOILER ALERT!

The Science of 'Interstellar' Explained (Infographic)

This infographic contains details about the new space film "Interstellar. " The film "Interstellar" relies on real science for many of its stunning visuals. Physicist Kip Thorne, an expert on black holes and wormholes, provided the math that the special effects artists turned into movie magic. The spaceship Endurance's destination is Gargantua, a fictional supermassive black hole with a mass 100 million times that of the sun.

It lies 10 billion light-years from Earth and is orbited by several planets. "Interstellar" in Pictures: A Space Epic Gallery. Getting the math of the Universe to cancel out. The vacuum of space isn't actually "empty"; it teems with particles that pop in and out of existence, giving the vacuum an energy of its own.

Getting the math of the Universe to cancel out

But here's an embarrassing fact about that energy: it predicts that the cosmological constant (which provides a measure of the rate of the expansion of the Universe) should be 10120 times larger than we think it actually is. Most scientists prefer things to be a bit more accurate than this. Still, the main question on cosmologists' minds is not why the predicted and real values appear to be so different, but how it is that the vacuum energy does so little. An answer of sorts has recently appeared in Physical Review Letters. Astrophysics. Astrophysics. Astrophysics (from Greek astron, ἄστρον "star", and physis, φύσις "nature") is the branch of astronomy that deals with the physics of the universe, especially with "the nature of the heavenly bodies, rather than their positions or motions in space.


Space physics. History[edit] In the late 1870s, Henri Becquerel offered the first physical explanation for the statistical correlations that had been recorded: sunspots must be a source of fast protons.

Space physics

They are guided to the poles by the Earth's magnetic field. In the early twentieth century, these ideas led Kristian Birkeland to build a terella, or laboratory device which simulates the Earth's magnetic field in a vacuum chamber, and which uses a cathode ray tube to simulate the energetic particles which compose the solar wind. A theory began to be formulated about the interaction between the Earth's magnetic field and the solar wind. See also[edit] References[edit] Kallenrode, May-Britt (2004). Orbital mechanics. Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other spacecraft.

Orbital mechanics

The motion of these objects is usually calculated from Newton's laws of motion and Newton's law of universal gravitation. It is a core discipline within space mission design and control. Celestial mechanics treats more broadly the orbital dynamics of systems under the influence of gravity, including both spacecraft and natural astronomical bodies such as star systems, planets, moons, and comets. What is Astrophysics? Astrophysics is a branch of space science that applies the laws of physics and chemistry to explain the birth, life and death of stars, planets, galaxies, nebulae and other objects in the universe.

What is Astrophysics?

It has two sibling sciences, astronomy and cosmology, and the lines between them blur.