black holes

Category archives for black holes

“What makes us love… is when we learn all these fantastic stories. Feeding the imagination is what makes a subject come alive.” -Daniel Tammet Is the largest object in our galaxy — our central black hole — poised to devour a massive gas cloud? As far as supermassive black holes go, the one at the center of our galaxy…

“The world owes you nothing. It was here first.” -Mark Twain When you think about where all of this came from — back to the beginning of the Universe — there’s a good chance it makes you a little uncomfortable. For this week’s Ask Ethan, our one remaining column here on ScienceBlogs, our reader vvv…

“It is by going down into the abyss that we recover the treasures of life. Where you stumble, there lies your treasure.” -Joseph Campbell Ever since we created a question/suggestion box here, we’ve been deluged by far more excellent questions than one person could possibly answer, but that doesn’t mean we aren’t trying! For this…

“The proverb warns that ‘You should not bite the hand that feeds you.’ But maybe you should, if it prevents you from feeding yourself.” -Thomas Szasz But on this Messier Monday, you’re lucky enough that you’re about to be introduced to one of the great northern galaxies of the Messier catalogue that is feeding itself! There…

“Dream no small dreams, for they have no power to move the hearts of men.” -Johann Wolfgang von Goethe Welcome back to yet another Messier Monday here on Starts With A Bang! Each Monday, we highlight one of the 110 deep-sky objects that make up the Messier catalogue, showing you where and how to find…

“You wait for a gem in an endless sea of blah.” -Lawrence Grossman On the one hand, we have General Relativity, our theory of space, time, and gravity. It describes the Universe on both large and small scales perfectly, from the hot Big Bang to our cold accelerating expansion, from vast superclusters of galaxies down…

How can we see black holes?

“According to the special theory of relativity nothing can travel faster than light, so that if light cannot escape, nothing else can either. The result would be a black hole: a region of space-time from which it is not possible to escape to infinity.” -Stephen Hawking You may have encountered objects that are the same…

Messier Monday: Bode’s Galaxy, M81

“When you look at the stars and the galaxy, you feel that you are not just from any particular piece of land, but from the solar system.” -Kalpana Chawla Welcome to this week’s Messier Monday, where I pick a new object out of the original catalogue of 110 “faint fuzzies” designed to help comet-hunters avoid…

“There is a single light of science, and to brighten it anywhere is to brighten it everywhere.” -Isaac Asimov One of the most spectacular and successful ideas of the 20th Century was Einstein’s General Relativity, or the idea that matter and energy determines the curvature of spacetime, and the curvature of spacetime in turn determines…

“Black holes, which have no memory, are said to contain the earliest memories of the universe, and the most recent, too, while at the same time obliterating all memory by obliterating all its embodiments. Such paradoxes characterize these strange galactic monsters, for whom creation is destruction, death life, chaos order.” -Robert Coover Our Milky Way,…