Black hole -- A black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping it except through quantum tunnelling behaviour (known as Hawking Radiation). The ... > full article

Quasar -- A quasar is an astronomical source of electromagnetic energy, including light, which shows a very high redshift. The scientific consensus is that this high redshift is the result of Hubble's law. ... > full article

Stellar evolution -- In astronomy, stellar evolution is the sequence of changes that a star undergoes during its lifetime; the hundreds of thousands, millions or billions of years during which it emits light and heat. ... > full article

Astrophysics -- Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature and chemical composition) of astronomical ... > full article

Gravitation -- Gravity is a force of attraction that acts between bodies that have mass. Gravity is the reason for the very existence of the earth, the sun and other celestial bodies; without it matter would not ... > full article

General relativity -- General relativity (GR) is the geometrical theory of gravitation published by Albert Einstein in 1915. It unifies special relativity and Sir Isaac Newton's law of universal gravitation with the ... > full article

Introduction to general relativity -- General relativity (GR) is the geometrical theory of gravitation published by Albert Einstein in 1916. It unifies Einstein's earlier special relativity with Sir Isaac Newton's law of universal ... > full article

Chandra X-ray Observatory -- Chandra X-ray Observatory is a satellite launched on STS-93 by NASA on July 23, 1999. It was named in honor of Indian-American physicist Subrahmanyan Chandrasekhar who is known for determining the ... > full article

Spacetime -- In physics, spacetime is a model that combines 3-D space and 1-D time into a single construct called the space-time continuum (the 4th ... > full article

Gravitational wave -- In physics, in terms of a metric theory of gravitation, a gravitational wave is a fluctuation in the curvature of space-time which propagates as a wave, traveling outward from a moving object or ... > full article

Decoding the Universe: How the New Science of Information Is Explaining Everything in the Cosmos, from Our Brains to Black Holes
As Charles Seife reveals in this energetic new book, information theory, once the province of philosophers and linguists, has emerged as the crucial science of our time, shedding new light on the ... > read more

The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory
There is an ill-concealed skeleton in the closet of physics: "As they are currently formulated, general relativity and quantum mechanics cannot both be right." Each is exceedingly accurate in its ... > read more

A Brief History of Time : The Updated and Expanded Tenth Anniversary Edition
Stephen Hawking, one of the most brilliant theoretical physicists in history, wrote the modern classic A Brief History of Time to help nonscientists understand the questions being asked by scientists ... > read more

Come Hell or High Water: Hurricane Katrina and the Color of Disaster
What Hurricane Katrina reveals about the fault lines of race and poverty in America-and what lessons we must take from the flood-from best-selling "hip-hop intellectual" Michael Eric Dyson Does ... > read more

Hiding in the Mirror : The Mysterious Allure of Extra Dimensions, from Plato to String Theory and Beyond
Beginning well before Plato’s allegory of the cave and continuing to modern scientific breakthroughs from relativity to quantum mechanics, as well as to pop cultural icons like Twilight Zone ... > read more

Parallel Worlds : A Journey Through Creation, Higher Dimensions, and the Future of the Cosmos
In this thrilling journey into the mysteries of our cosmos, bestselling author Michio Kaku takes us on a dizzying ride to explore black holes and time machines, multidimensional space and, most ... > read more

Healthy Black Hair: Step-by-Step Instructions for Growing Longer, Stronger Hair
Healthy Black Hair-step-by-step instructions for growing longer, stronger hair is not just another hair care book. Although chock full of styling and hair care tips, it includes a complete hair care ... > read more

My Life as a Quant : Reflections on Physics and Finance
Emanuel Derman was one of the first physicists to move to Wall Street, and his career paralleled the growth of quantitative trading over the past twenty years. In My Life as a Quant , he traces his ... > read more

Warped Passages : Unraveling the Mysteries of the Universe's Hidden Dimensions
The universe has its secrets. It may even hide extra dimensions, different from anything ever imagined. A whole raft of remarkable concepts now rides atop the scientific firmament, including parallel ... > read more

Feeling Good : The New Mood Therapy
FEELING GOOD FEELS WONDERFULThe good news is that anxiety, guilt, pessimism, procrastination, low self-esteem, and other "black holes" of depression can be cured without drugs. In FEELING GOOD, ... > read more