An extensive study of galaxies reveals that the big ones grow primarily from cannibalizing the smaller ones. Small galaxies, on the other hand, are very efficient at creating new stars from scratch right up until they get gobbled up. This is just one of the fascinating results of a 7 year study by 90 scientists of
Stephen Hawking has been quoted in the news recently saying that the Higgs particle could be the utlimate doomsday device, potentially destroying the entire universe in one (light-speed traveling) fell swoop.
You may want to read this fast.
Seriously though, Don’t Panic 😛
Your ultimate address just changed. Astronomers have discovered that the supercluster we’ve long-believed our Milky Galaxy resides in is actually just an appendage on the outskirts of an even more giant new supercluster called Laniakea.
Every now and then we receive an email from someone who lists their address in a much more complete way than most everyone else does. Instead of listing something like a town/state/country, they take a humorous much broader perspective that would seemingly be of interest only to an alien from the other side of the visible universe. They usually take the form of:
Earth/Milky Way/Local Group/Virgo-Cluster/Virgo-SuperCluster/Visible Universe.
Some scientists (or perhaps journalists) are claiming that our three-dimensional reality may be an illusion, that we a live in a hologram…and that they may have the experiment to prove it.
You read that right. Is our universe just a hologram? Are we ultimately as ethereal and insubstantial as those goofy projected 3D images that they still (#[email protected]&%*!) haven’t perfected yet? And what is this experiment you’re talking about?
Teams of scientists reveal that the long mysterious x-ray glow suffusing space is mostly from a bubble our solar system is in which was caused by ancient supernova explosions.
Yes, we live in a bubble. It is called The Local Hot Bubble (or put less thermodynamically, The Local Bubble).
Type 1a Supernovas are as fascinating as they are mysterious. New evidence points to a more likely origin for them involving two white dwarf stars colliding. This news was quite a surprise to me. Before I get into it, let’s lay some groundwork to set the cosmic scene. Supernovas are exploding stars. That was easy
Scientists have for the first time presented indirect evidence for the existence of the elusive heavy strange baryon.
This isn’t a weird corpulent variant of bigfoot. Baryons are a special class of subatomic particle. Look around you…everything you see is made of baryons. Indeed, almost everything in the visible universe is made of them. The most recognizable types of baryons (in terms of name/brand recognition) are the protons and neutrons at the core of atoms. What makes them baryons is the fact that they are each made of 3 of the most fundamental and elementary components of matter… quarks. There are 6 kinds of quarks but protons and neutrons have to be a specific combination of just the Up and Down ones.
Astronomers have found proof that certain small asteroids stay together because of an extra cohesive force other than gravity or friction. Asteroids are not all monolithic space mountains of potential doom. Sure, many of them are solid dense bodies but a significant number are conglomerations of rocks from very large to the smallest grains…Rubble Piles.
A new theory points to a possible alternative explanation to the Big Bang. Our universe may have arisen from the collapse of a hyper-dimensional star in a 5 dimensional universe.