JPL's Visions of the Future

The JPL, or Jet Propulsion Laboratory, the same famous JPL you saw on the Martian movie, beside it's very impressive work of genius on NASA's outer space missions, has a little interesting side work called "Visions of the Future". In this beautiful little space, JPL releases printable posters about NASA/JPL's previous and future missions. The posters are a combination of brief scientific information about the missions and beautiful pieces of artwork.

Files are available in PDF, JPEG and/or TIFF formats  and are FREE to download and print under JPL Image Use Policy.

 JPL's Earth mission poster

So visit Visions of the Future and grab your very own NASA/JPL posters! :)

How a black hole eats a star, a NASA vision

from description of the video:

This artist’s rendering illustrates new findings about a star shredded by a black hole. When a star wanders too close to a black hole, intense tidal forces rip the star apart. In these events, called “tidal disruptions,” some of the stellar debris is flung outward at high speed while the rest falls toward the black hole. This causes a distinct X-ray flare that can last for a few years...

During the tidal disruption event, filaments containing much of the star's mass fall toward the black hole. Eventually these gaseous filaments merge into a smooth, hot disk glowing brightly in X-rays. As the disk forms, its central region heats up tremendously, which drives a flow of material, called a wind, away from the disk. 

You can download this video and read more about the black holes here: Destroyed Star Rains Onto Black Hole, Winds Blow It Back