Astrophysics for People in a Hurry

by Neil deGrasse Tyson


Astrophysics for People in a Hurry Ideas

Astrophysics for People in a Hurry Ideas

  • Moons

    The Moon is the bi-product of a bigger collision at some point in the Earth’s past. This conclusion was drawn when astronauts brought back samples from the Moon and those samples seemed quite similar to the Earth’s crust. It is likely that the larger collisions resulted in various orbiting debris th

  • Asteroids

    Many asteroids reside in the main asteroid belt, which lies between the orbits of Mars and Jupiter. Sadly, some of these may eventually collide with Earth and could have serious negative impacts on the state of the planet. Fortunately, that will not happen for approximately one hundred million years

  • Telescopes

    It took some time for the invention of telescopes that could be used to detect invisible light. The invention of such telescopes was crucial to studying some space phenomena, such as supernova and pulsars. One type of telescope, radio telescopes, was the first designed to detect non-visible-light,

  • Shapes In Space

    Most items in the cosmos do not have sharp angles. Some objects have odd shapes. However, most objects in space (and nature) are round. Often though, experiments assume roundness: just for the sake of reaching some conclusions until further research can be conducted later. Natural forces, such as

  • Lambda

    Einstein’s mathematical equations for relativity included lambda, which represented a force in opposition to gravity. He included this to keep calculations about the universe in balance. This was fitting with theories at the time that the universe was static. No one anticipated that the universe mig

  • Dark Matter

    Through calculations, scientists found that dark matter accounts for approximately six times the total gravity of the visible matter. Research also indicates dark matter cannot be made of ordinary matter. It is not any known object or substance. It has also been concluded that dark matter does not p

  • Galaxies

    There are, after all, approximately one hundred billion galaxies. Each is brightly packed with stars. However, between the galaxies, there are difficult-to-detect objects. These may be just as interesting as the galaxies themselves. Earth falls within the Milky Way. The most visible, closest galax

  • Cosmic Microwave Background

    Cosmic microwave background (or CMB) exhibits the profile of a radiant and cooling object. It peaks and falls in various parts of the spectrum. It also gives off radio waves and high energy photons. The existence of the CMB was predicted by George Gamow from the scientific subfield of cosmology. C

  • Universal Laws

    Scientists do not just want to measure the movement of space, they want to know what each object is. In the 19th century, chemists discovered that prisms could be used to break white light down into its parts. This soon led to the discovery that different elements produce different patterns of color

  • Subatomic Relationships

    In seeking to identify a universal set of rules, scientists continue to examine the relationships between the subatomic particles that comprise the universe. These quarks, bosons, leptons, photons, electrons, and neutrinos each play a role in the universe and have various types of relationships with

  • Einstein & Planck

    In 1916, to help explain the formation and function of the universe, Albert Einstein put forth his General Theory of Relativity. This theory described the relationship between space and time. It explained the curved nature of “spacetime” and its subsequent effects on gravity. Space is large, but it

  • It Started With The Big Bang

    Nearly 14 billion years ago, the entire universe was contained in a volume one-trillionth the size of a period. This pinpoint-sized cosmos could only expand, and it did, in what is now called the Big Bang. Due to gravity, the expanding matter and energy curved the fabric of space and time around it.

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