Astrophysics For People In A Hurry Now

Discovered much later, this mysterious force acts as a "cosmological constant" that is currently driving the universe's expansion to accelerate. The Cosmic Perspective

If you want to dive deeper into these "bite-sized" chapters of cosmic history, you can find at retailers like Weller Book Works ($18.95), Walmart (~$10.65), and Barnes & Noble ($18.95). Astrophysics for People in a Hurry: deGrasse Tyson, Neil Astrophysics For People In A Hurry

This invisible "frenemy" does not emit or reflect light but provides the gravitational glue that keeps galaxies from flying apart. It makes up roughly 85% of all matter. Discovered much later, this mysterious force acts as

Fourteen billion years ago, everything we’ve ever known—every star, planet, and person—was packed into a space smaller than the period at the end of this sentence. In an event known as the , this tiny, hot, and incredibly dense point began to rapidly expand. It makes up roughly 85% of all matter

One of the book's most profound takeaways is the . The same laws of physics that govern a falling apple on Earth also govern the rotation of distant galaxies and the behavior of light across the void.

In the first trillionth of a second, the four fundamental forces of nature—, Electromagnetism , and the Strong and Weak Nuclear forces —were unified as one. As the universe expanded and cooled, these forces "untangled," and the first particles of matter began to form. A crucial cosmic coincidence occurred when matter slightly outnumbered antimatter by a billion-to-one ratio; if they had been perfectly equal, they would have completely annihilated each other, leaving nothing behind but light. Invisible Architects: Dark Matter and Dark Energy