Matter

In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or heat. Matter exists in various states. These include classical everyday phases such as solid, liquid, and gas – for example water exists as ice, liquid water, and gaseous steam – but other states are possible, including plasma, Bose–Einstein condensates, fermionic condensates, and quark–gluon plasma. Usually atoms can be imagined as a nucleus of protons and neutrons, and a surrounding "cloud" of orbiting electrons which "take up space".

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Half Ice, Half Fire: A Bizarre New State of Matter That Could Reshape Physics

Incredible photo shows supermassive black hole blowing a jet of matter into interstellar space

Physicists have confirmed a new mismatch between matter and antimatter

New 'Half-Ice, Half-Fire' Phase of Matter Found Lurking in a Magnet

Why is there more matter than antimatter? CERN result offers tantalizing new clue

'Half ice, half fire': Physicists discover new phase of matter in a magnetic material

After greening comes darkness….and it really does matter! - EurekAlert

Hybrid States of Light and Matter: A Breakthrough That Could Change Displays Forever

Physicists Bend Time Inside a Diamond, Creating a Brand-New Phase of Matter

Scientists freeze light: Researchers discover a rare state of matter where it flows like liquid but holds shape like a solid. Great work to the researchers in Italy.

Radical Theory Says Black Holes May Spew Matter And Time as White Holes

First petawatt electron beam arrives, ready to rip apart matter and space

Hybrid states of light and matter may significantly enhance OLED brightness - EurekAlert

A New State of Matter Just Changed the Future of Quantum Computing

Microsoft Says It Has Created a New State of Matter to Power Quantum Computers

Starquakes Unlock Mysteries of Matter in the Densest Stars

Scientists Just Discovered a New Way to Transform Matter

Object seen by James Webb may be a solar system in formation. The James Webb Space Telescope has captured a newborn protostar expelling bursts of matter. By analyzing the swirling dust grains around it, astronomers aim to deepen their understanding of how solar systems like ours form.

Supernova 'rains' could give rise to mysteriously magnetic dead stars

Scientists Just Created a ‘New Type of Matter’