Gravity

Category archives for Gravity

Ask Ethan #2: Meet the Oort Cloud

“The great oak of Astronomy has been felled, and we are lost without its shadow.” -Subrahmanyan Chandrasekhar, on the passing of Jan Oort In our new semi-regular series, readers from all over the world (and in low-Earth orbit, too, because why not!) are invited to send in their questions and suggestions for a chance to…

Where do Rogue Planets come from?

“Like all animals, human beings have always taken what they want from nature. But we are the rogue species. We are unique in our ability to use resources on a scale and at a speed that our fellow species can’t.” -Edward Burtynsky It’s really a romantic notion when you think about it: the heavens, the…

“One sees qualities at a distance and defects at close range.” -Victor Hugo A couple of weeks ago we took a look at the most distant galaxy (so far) in the known Universe, a galaxy so far away that it takes exclusively infrared observations from our most power space telescopes (Hubble and Spitzer) in order…

“A little knowledge that acts is worth infinitely more than much knowledge that is idle.” -Khalil Gibran It’s time again for another Messier Monday! The Messier Catalogue was the original comprehensive and accurate catalogue of fixed, deep-sky objects visible to any dedicated (northern hemisphere) skywatcher with even the most primitive of astronomical equipment. Over the centuries,…

The Most Distant Galaxy in the Universe

“People say sometimes that Beauty is superficial. That may be so. But at least it is not so superficial as Thought is. To me, Beauty is the wonder of wonders. It is only shallow people who do not judge by appearances. The true mystery of the world is the visible, not the invisible.” -Oscar Wilde…

What does the Universe really look like?

“On a cosmic scale, our life is insignificant, yet this brief period when we appear in the world is the time in which all meaningful questions arise.” -Paul Ricoeur Ask anyone who’s looked up at a dark sky on a clear, moonless night, and you’ll immediately hear tales about how incomprehensibly vast the Universe is.…

The Rarest Eclipse of Them All

“You can’t exactly bake a man to your specifications… A hybrid of Einstein, Tarzan and Inge Meysel doesn’t exist.” -Peer Steinbruck Of course, if you create enough chances, all the things that could eventually happen will come to pass. This is as true for human beings as it is for the physical Universe. And for our…

“To disagree leads to study, to study leads to understanding, to understand is to appreciate, to appreciate is to love. So maybe I’ll end up loving your theory.” -John Wheeler Out there in the Universe, there’s a lot to marvel at. Over billions of years, gravity has attracted different portions of the expanding Universe together…

Cosmic Awe

“…the magnificence of the Universe as revealed by modern science might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths.” -Carl Sagan As many of you know, I’m fortunate enough to live in a city that values science and scientific knowledge so highly that the our local news…

“God put me on this earth to accomplish a certain number of things. Right now I am so far behind that I will never die.” -Bill Watterson Welcome back to another Messier Monday, only here on Starts With A Bang! With each new Monday, we take an in-depth look at a prominently visible random object from Messier’s catalogue…