universe
“Weak Lensing” Helps Astronomers Map the Mass of the Universe
By making galaxies a little bit brighter, it points the way to elusive galaxies and lets us detect that most mysterious of substances: dark matter
The Hunt for High-Energy Photons Takes Place From a Mountaintop in Mexico
A new telescope built from water tanks might help answer some of the biggest questions in astronomy
Can Physicists Ever Prove the Multiverse Is Real?
Astronomers are arguing about whether they can trust this untested—and potentially untestable—idea
Supermassive Black Holes May Be More Common Than Previously Thought
Astronomers have found a huge black hole in a "cosmic backwater," opening the possiblity there could be many more in the universe
Inside the Atom Smasher at CERN
What you can see on a tour of the largest particle collider in the world
Astronomers Finally Tracked a Strange Radio Wave Burst to Its Source
With new insights into radio waves, scientists may be able to measure the mass of the universe
Where Are All the Aliens? Taking Shelter From the Universe's Radiation
Earlier life-forms across the cosmos may have faced thousands to millions of times the cosmic ray dose that we do today
Poltergeist and Quijote Are Among the New Approved Names for Alien Planets
People in 45 countries submitted ideas for naming exoplanets and their host stars after legends and literature
The Universe’s Oldest Stars Likely Lit Up Way Later Than Once Thought
Data gathered by the European Space Agency’s Planck telescope indicates that the universe was dark for about 550 million years after the big bang
Top Space Pictures of the Week, From a Hubble Icon to Hungry Black Holes
Ghostly pillars, a dark nebula and a galaxy herd starred in some of the best image-driven stories released at a recent astronomy meeting
What Is the Universe? Real Physics Has Some Mind-Bending Answers
Science says the universe could be a hologram, a computer program, a black hole or a bubble—and there are ways to check
From the Editor
From the Editor
Why Carl Sagan is Truly Irreplaceable
No one will ever match his talent as the “gatekeeper of scientific credibility”
What Astronomers Are Still Discovering About the Big Bang Theory
A half-century after it was confirmed, the theory still yields new secrets
What Does the Future of the Universe Hold?
The collision of our galaxy with the Andromeda galaxy is billions of years away, but it’s never too early to wonder what will happen
Picture of the Week: A Deep View of the Universe
A new survey of a slice of the distant reaches of the universe reveals 200,000 galaxies
A Quick Guide to Owning the Universe
If someone tries to sell you the Brooklyn Bridge, you know it's a hoax. But what about a meteorite, moon or star?
A 3-D Map of the Universe, No Glasses Required
Investigators at the Sloan Digital Sky Survey track changes in the sky and some of the universe’s great mysteries
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