Recent page editor - Kayden Cox Spring 2018
Previous Page Editor's -
Kaylyn Fitzsimmons, Fall 2016
Francois Casabonne April 22nd, 2014
Sean Kyle Sunga 2013,
Amber Owens Spring 2012, Katey Hilton Fall 2012

Black Holes
Related image
Related image
Related image
Related image

planet orbiting a black hole, black hole bending the light around it.

What are black holes?
Black holes are regions in space where the gravity is so strong the escape velocity is beyond the speed of light.

http://www.alphr.com/space/1008610/what-are-black-holes-event-horizon-physics

This web-page was good at describing what black holes are. It describes black holes as matter compacted into a small space with very strong gravity, and that the density does strange things to the space around it one of those being the appearance of the event horizon.
Author: Thomas McMullen

Types of Black Holes:
There are 3 types of black holes being,
1) Miniature black holes - believed to have been created during the time of the big bang.
2) Stellar mass black holes - born from the death of a dying star, the core implodes while the outer layer explodes leaving behind a stellar mass black hole.
3) Supermassive black holes - large black holes with billions of solar masses that exist in the center of galaxies
https://owlcation.com/stem/What-Are-The-Different-Types-of-Black-Holes

This page goes into detail about the types of black holes and how they may have formed and their solar masses.
Author: Leonard Kelly, holds a bachelors in physics with a minor of mathematics.
Last updated: 5/15/18
_

Birth of Black holes:
Related image
Related image

gamma ray burst, erupting from a star after the core collapses into a black hole. picture by Mark Garlick

http://hubblesite.org/explore_astronomy/black_holes/encyc_mod3_q8.html

This page was great at explaining how black holes are born, it shows us that they are born when objects cannot handle the compressing force of its own gravity.
Author: Hubblesite
Last updated: 5/15/18

Black hole collision:
Image illustrating: What happens when black holes collide?
Image illustrating: What happens when black holes collide?

The galaxy NGC 6240 hosts 2 supermassive black holes near its center (2 blue dots in right image) that will one day merge with eachother.
http://hubblesite.org/explore_astronomy/black_holes/encyc_mod3_q6.html
This page explains how black holes can merge into a larger black hole that send ripples through space known as gravitational waves.


What happens when objects fall into a black hole:
Related image
Related image

space debris falling into the black hole. Star Wars.

https://www.pri.org/stories/2015-09-14/what-happens-objects-enter-black-holes
The writter explains that Stephen Hawking believed that objects that fell in the black hole would all turn into the same thing in the form of radiation, he also suggested that black holes can store information in the form of a hologram in the event horizon.
Author: Elizabeth Shockman
Last updated: 5/15/18

http://hubblesite.org/explore_astronomy/black_holes/encyc_mod3_q16.html
This page explains the side effects of someone falling into the black hole.
Author: Hubblesite
Last updated: 5/15/18
_

Recent News:
external image 051518_quasar.jpg
Astronomers report the discovery of a super-massive black hole at the heart of a quasar that is 20 billion times more massive than the Sun. Image: ESA/Hubble Space Telescope/NASA
https://astronomynow.com/2018/05/15
Australian astronomers find a supermassive black hole that may be the fastest growing in the know universe absorbing in the mass of the sun every two days and emitting radiation.
Author: Astronomy Now
Last updated: 5/15/18
_


Black Holes basic:
https://www.youtube.com/watch?v=e-P5IFTqB98
The video helped me a lot in this research. It explained to me everything about black holes about how they are born, how they die and it goes into detail well without confusing who's watching. The video provides animations to understand what he is talking about making the audience of the video for various ages.
Author: Kurzgesagt
Last updated: 5/15/18
_

Extra Info:
external image bhskymap.jpg
Map of sky locations of black hole candidates: stellar-mass black holes in red, intermediate-mass black holes in purple, supermassive black holes in blue. Base image: Tycho sky map from JPL's Solar System Simulator.
http://www.johnstonsarchive.net/relativity/bhctable.html
The link has a long list of black holes. For every black hole it tells how many light years away it is, the mass of the black hole and the companion star's magnitude.
Author: Wm. Robert Johnston
Last updated: N/A


https://www.youtube.com/watch?v=yWO-cvGETRQ
This video provides extra information on black holes it helped a lot because it also explained black holes through narrating and animations which is good for someone who is a visual learner.
Author: Kurzgesagt
Last updated: 5/15/18

https://www.livescience.com/32164
This site explains the theory that black holes gravity is so strong that it bends space and because space is bent you can travel space through a shorter distance like a shortcut. It also explains that black holes aren't empty space, but matter compacted into a small dense space known as a singularity.
Author: Jesse Emspak
Last updated: 5/16/18

http://www.seasky.org/celestial-objects/black-holes.html
It goes into detail of Einstein's theory of relativity on how gravity affects time and that whatever you see fall inside the black hole would appear to slow down until it disappears. Also explains that black holes do not absorb things like a vacuum cleaner but only do so when something is too close meaning beyond that they act no different than a star.
Author: seasky.org
Last updated: 5/16/18