While Robert Frost famously said that he prefers the world to end in fire, physicists have long predicted the universe will end with an icy sputter known as "heat death." Heat death occurs when the universe finally uses up all its energy, with all motion stopping and all the atoms in creation grinding to a halt. And, based on new calculations from a team of Australian physicists, it looks like heat death is far closer than previously thought.
A 100-ton antenna has arrived at a plateau in the Chilean Andes as the first piece of the world's largest astronomical observatory. The ALMA (Atacama Large Millimeter/submillimeter Array) is designed to observe light with millimeter and submillimeter wavelengths -- between infrared light and radio waves – and help astronomers see light from some of the coldest and most distant objects at the edge of the observable universe.
Dark energy is a mysterious force that cosmologists use to fill gaps in our model of why our universe continues its ever-faster expansion. But now two mathematicians have found a way to explain those baffling observations of the universe without the dark energy question mark hanging overhead.
Good news for astrophysicists and fans of massive thermonuclear explosions alike: a team of mathematicians at the DOE's Lawrence Berkeley National Laboratory, working alongside two astrophysicists from Stony Brook University and U.C. Santa Cruz, have modeled the hours leading up to a Type Ia supernova, capturing the gritty details of the cataclysmic death of a white dwarf star for the first time.
Planetary Nebula NGC 6302:The newly-refurbished Hubble Space Telescope sent back its first breathtaking images after being repaired in September. Here, Nebula NGC 6302 with its butterfly wings of 36,000-degree gas. NASA
We always like to look forward to bigger and better tech, but NASA's Hubble Space Telescope, though it's been around the block, still holds a special place in every geek's heart. Now the freshly repaired and upgraded telescope has resumed churning out enough images of cosmic glory to turn anyone's head.
There is no denying we humans are obsessed with real estate. We always like to think we've landed ourselves a prime piece of land to settle on, and that outlook extends past your home, vacation home, and country and all the way out to the Earth itself.
An electronic circuit 100 times smaller than a hair, could help astronomers shed light on the universe's creation
By Jaya Jiwatram
Posted 07.17.2008 at 1:05 pm 1 Comment
For centuries, the creation of the universe has loomed large in human thought, cropping up in everything from ancient folklore to modern scientific theories. A newly-developed nano-sized device, 100 times smaller than the thickness of human hair and capable of detecting infrared light that dates back to the "big bang," could soon give us more food for thought concerning the galaxy's formation 14 billion years ago.
A newly discovered galaxy turned out 4,000 stars a year, contradicting a long standing theory
By Stuart Fox
Posted 07.11.2008 at 11:58 am 4 Comments
Baby Boomer:The Baby Boom galaxy churned out stars at a never-before-seen-rate. NASA/JPL-Caltech/Subaru
Considering the birth rate, astronomers might have named this the Rabbit Galaxy. According to a new paper in today’s issue of Astrophysical Journal Letters, researchers have discovered a galaxy that birthed stars 400 times faster than our Milky Way, overturning previously held ideas about the formation of giant galaxies
Scientists are building ultra-cold systems that mimic the most extreme edges of the universe. Can these analogues help solve the big bang’s mysteries?
By James Owen Weatherall
Posted 05.07.2008 at 4:30 pm 10 Comments
The device is a cylinder a bit smaller than a pinky finger, filled with helium and cooled to just above absolute zero. Inside, a young universe—or something very much like one—evolves. As the helium sloshes about, it mimics a process that may have powered our own universe a few moments after the big bang. And once the fluid settles down, the little whirlpools that remain may be akin to the defects in early spacetime that ultimately gave rise to galaxies, stars and planets.
Scientists take a look at one of the most complicated puzzles concerning our existence and discover how long galaxies should keep expanding
By Matt Ransford
Posted 04.30.2008 at 10:25 am 6 Comments
Not much in science is more of a mind-bender than thinking about the size and fate of the known universe (except for quantum mechanics and string theory, which also has a lot to do with the size and fate of the universe, albeit on the opposite end of the size spectrum). When we first developed theories about the universe, the model which resulted depicted all of space as static and unchanging, infinite in depth in any direction. Then Einstein posited general relativity and suddenly a whole host of universes were theoretically possible: static, dynamic, infinite, and finite.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.