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Scale of the Observable Universe (xkcd)

xkcd is (probably) one of the best science related websites you’ll ever find. The site features a number of amazing comics that deal with physics, astronomy, mathematical concepts, and absolutely insane hypothetical scenarios.

Astronomy Photo of the Day (APotD): 9/18/14 — New Density Map of the Milky Way

Our home galaxy is called the Milky Way. It spans approximately 100,000 light-years across and contains an impressive 400 BILLION stars; so many that it’s impossible to see and count them all, let alone put all of them into a catalog.

Lightning from Hell

Credit: Martin Rietze There are few phenomenon on Earth as terrifying, devastating, and interesting as volcanic eruptions.

5 Crazy Ways Social Media Changes Your Brain

Chances are, if you have been alive longer than a minute, your face is plastered across Facebook, your thoughts are echoing throughout the Twitterverse, and your home movies are being watched by someone on YouTube who doesn’t even speak your language.

The Science Behind “The Flash”

Photo via Following the Nerd Not only is he the fastest man alive, but thanks to the CW and its upcoming fall lineup, he’s also one of the most talked about comic book heroes in modern times.

Smallest Known Galaxy with a Supermassive Black Hole

This Hubble Space telescope image shows the gargantuan galaxy M60 in the center, and the ultracompact dwarf galaxy M60-UCD1 below it and to the right, and also enlarged as an inset.

Astronomy Photo of the Day (APotD): 09/17/14 – The Rho Ophiuchi Cloud

Image Credit: Credit: NASA JPL-Caltech, Harvard-Smithsonian CfA Meet the Rho Ophiuchi Cloud, a celestial star-forming region that lurks about 400 light-years from Earth in the constellation of Ophiuchus This area belongs to the larger Rho Ophiuchi Cloud Complex, which spans an entire 5 light-years in totality.

Questions on Orbital Dynamics

Question: How is the Sun’s gravity strong enough to hold distant planets like Jupiter and Saturn in orbit, but not strong enough to have already swallowed Mercury?

NASA To Resume Manned Space Flight

Image credit: NASA U.S. astronauts once again will travel to and from the International Space Station from the United States on American spacecraft under groundbreaking contracts NASA announced Tuesday.

Richard Feyman: The Father of Theoretical Physics

Richard Feynman (May 11, 1918 – February 15, 1988) To many, Richard Feynman is an inspiration – the same caliber of inspirational as the greatest of the greats; like Albert Einstein, Sir Issac Newton and Johannes Kepler (the man that shaped the laws of motion).

What Is Particle Physics: Part 2

Image credit: CERN The Standard Model is the theory that describes  the interaction of forces affecting subparticles, like electrons and quarks.

An Alternative to Quantum Orthodoxy In Fluid Mechanics?

Close-ups of an experiment conducted by John Bush and his student Daniel Harris, in which a bouncing droplet of fluid was propelled across a fluid bath by waves it generated.

Astronomy Photo of the Day (APotD): 9/16/14 — NGC 2623

Image Credit: Hubble Legacy Archive, ESA, NASA, Martin Pugh Located approximately 250 million light-years away from Earth in the constellation of Cancer, NGC 2623 is a picture of perfection—two galaxies that now act as one. Soon, almost all evidence of the event will be gone as well.

From Geocentrism to Heliocentrism

In honor of Nicholas Copernicus’ birthday today, I wanted to talk about the history of the heliocentric model.

Do “Superclusters” Actually Exist?

The Laniakea Supercluster A “supercluster” is a term used to describe an enormous cluster of galaxies.

Simple GIFs That Teach You Complex Math Concepts

Dave Whyte is a PhD candidate who is currently studying the physics of foam. He is also an amazing animator.

Wasp Colony On Window Provides Killer View

If you’ve ever wanted to see the inside of a wasp colony, now you have your chance. These videos were taken by YouTuber Vang Tsal.

The Best & Most Beautiful Messier Objects

The Messier Catalog 1-20    (via Source) Thanks to technological developments, we mere mortals can now see unimaginably distant places in unprecedented detail without leaving the comfort of our home.

Astronomy Photo of the Day (APotD): 9/15/14 — NGC 1350

Image Credit: H. Boffin, H. Heyer, E.Janssen (ESO), FORS2, European Southern Observatory This celestial-equivalent of an all-knowing, seeing-eye is NGC 1350: an “island universe” found about 85 million light-years from Earth in the Fornax constellation.

Where is the Evidence of Extraterrestrials?

Click to see a larger image “Aliens…If they exist, where are they? Why aren’t they contacting us? What are they waiting for?