Astronomy

Category archives for Astronomy

“It isn’t only the beauty of the night sky that thrills me. It’s the sense I have that some of those points of light are the home stars of beings not so different from us, daily cares and all. who look across space with wonder, just as we do.” -Frank Drake What is it that…

Did Mars Once Have Three Moons? (Synopsis)

“The larger inner moons fall back to Mars after about 5 million years due to the tidal pull of the planet, after which the two outer satellites evolve into Phobos- and Deimos-like orbits.” -Pascal Rosenblatt, et al. Compared to the other moons we know of in the Solar System, Mars’s two, Phobos and Deimos, are incredibly difficult to…

“Before we devised artificial lights and atmospheric pollution and modern forms of nocturnal entertainment we watched the stars. There were practical calendar reasons of course but there was more to it than that. Even today the most jaded city dweller can be unexpectedly moved upon encountering a clear night sky studded with thousands of twinkling…

“It is the function of science to discover the existence of a general reign of order in nature and to find the causes governing this order. And this refers in equal measure to the relations of man – social and political – and to the entire universe as a whole.” -Dmitri Mendeleev When the Universe…

“How vast those Orbs must be, and how inconsiderable this Earth, the Theatre upon which all our mighty Designs, all our Navigations, and all our Wars are transacted, is when compared to them.” -Christiaan Huygens It was quite a surprise when we started discovering all the exoplanets that were out there. While there’s a big…

How flat can a planet be? (Synopsis)

“‘I’ll follow him to the ends of the earth,’ she sobbed. Yes, darling. But the earth doesn’t have any ends.” -Tom Robbins We have some pretty good definitions of what it takes to be a planet, and one part of that definition is that a world needs to be massive enough to pull itself into…

“The problem is, you’re trying to find these really faint things, but you’re looking behind these really bright things. The brightest galaxies in the universe are in clusters, and those cluster galaxies are blocking the background galaxies we’re trying to observe.” -Rachael Livermore One of the biggest puzzles in science is exactly how the Universe…

“To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.” -Nicolaus Copernicus As we peel back the layers of information deeper and deeper into the Universe’s history, we uncover progressively more knowledge about how everything we know today came to…

“For the first time we can learn about individual stars from near the beginning of time. There are surely many more out there.” -Neil Gehrels We’ve come incredibly far in our quest to learn how the Universe came to be the way it is today. We can see out in space for tens of billions…

“To morrow, I believe, is to be an eclipse of the sun, and I think it perfectly meet and proper that the sun in the heavens, and the glory of the Republic should both go into obscurity and darkness together.” -Benjamin F. Wade The Moon is spherical, and so its shadow should be a circle…