Showing results for "Dark Matter" in Physics

All the matter and light we can see in the universe makes up a trivial five per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced. Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That ’something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets.

In The Elephant in the Universe, Govert Schilling explores the fascinating history of the search for dark matter. Evidence for its existence comes from a wealth of astronomical observations. Theories and computer simulations of the evolution of the universe are also suggestive: they can be reconciled with astronomical measurements only if dark matter is a dominant component of nature.

From a star theoretical physicist, “a love letter to the wonderous universe we call home, and an urge to think critically about how we explore its depths” (Smithsonian Magazine) In The Disordered Cosmos, Dr. Chanda Prescod-Weinstein shares her love for physics, from the Standard Model of...

Whats really out there? How much do we actually know about the phenomena we cannot explain? Are we alone? Welcome to Dark Matters. A show solely dedicated to paranormal topics, with deep dives, discussions and fascinating facts all in. Hosted by Sigil Arts' Resident Enigma, Glitter!

Imagine you’re trying to build the biggest, most awesome LEGO castle ever. You gather all your colorful bricks—the reds, blues, yellows, and greens. You plan your design, start stacking the bricks, and build towers, walls, gates, and secret tunnels. Everything’s going great. But suddenly, something odd starts to happen. Parts of your castle stick together more tightly than they should. Some towers refuse to fall over, no matter how much you poke them. And even stranger, the whole play area you’re building on starts stretching.

The ordinary atoms that make up the known universe - from our bodies and the air we breathe to the planets and stars - constitute only 5 percent of all matter and energy in the cosmos. The rest is known as dark matter and dark energy, because their precise identities are unknown. The Cosmic Cocktail is the inside story of the epic quest to solve one of the most compelling enigmas of modern science - what is the universe made of? - told by one of today’s foremost pioneers in the study of dark matter.

On July 23, 1999, the Chandra X-Ray Observatory, the most powerful X-ray telescope ever built, was launched aboard the space shuttle Columbia. Since then, Chandra has given us a view of the universe that is largely hidden from telescopes sensitive only to visible light. In Chandra's Cosmos, Wallace H. Tucker uses a series of short, connected stories to describe the telescope's exploration of the hot, high-energy face of the universe.

What is matter? Matter is the stuff from which we and all the things in the world are made. Everything around us - from desks, to books, to our own bodies - are made of atoms, which are small enough that a million of them can fit across the breadth of a human hair. Inside every atom is a tiny nucleus and orbiting the nucleus is a cloud of electrons. The nucleus is made out of protons and neutrons, and by zooming in further, you would find that inside each there are even smaller particles: quarks.