Don’t let the name fool you: a black hole is anything but empty space. Rather, it is a great amount of matter packed into a very small area – think of a star ten times more massive than the Sun squeezed into a sphere approximately the diameter of New York City. The result is a gravitational field so strong that nothing, not even light, can escape.
This #Infographic puts in to perspective just how big the universe is. From the city you live in, to the state, country, continent, planet, solar system, galaxy etc. Visualizing the universe and its visible area puts in to perspective just how small we are. With the help of Hubble space images, and advanced high definition cameras from NASA, we are able to see the universe how we never could in the past.
Think you know everything there is to know about the Sun? Think again. Here are some facts about the Sun, collected in no particular order. Some you might already know, and others will be totally new to you.
We all love to point out the ridiculous bad physics in science fiction — it’s like an awesome sport that everybody wins. (Except physics.) But the truth is, sometimes you have to violate the laws of physics to create science fiction stories that people want to watch.
This infographic explains a popular theory of active supermassive black holes, referred to as the unified model — and how new data from NASA’s Wide-field Infrared Survey Explorer, or WISE, is at conflict with the model. Astronomers say the model could still be correct but needs adjusting to account for the unexpected observations by WISE.