Happy Black Hole Week!
April 12-16 is Black Hole Week! To celebrate, check out some of the cute, informative, and exciting resources NASA has to help you celebrate!
A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos. Matter and radiation fall in, but they can’t get out.
Two main classes of black holes have been extensively observed. Stellar-mass black holes with three to dozens of times the Sun’s mass are spread throughout our Milky Way galaxy, while supermassive monsters weighing 100,000 to billions of solar masses are found in the centers of most big galaxies, ours included. LEARN MORE
NASA's Guide to Black Hole Safety:
See the latest information from NASA about black holes: CLICK HERE
Learn more about black holes with visualizations and videos: CLICK HERE
Download Black Hole Week screensavers and backgrounds: CLICK HERE