
Milky Way’s Tiny Satellite Galaxies May Help Solve Dark Matter Mystery
Hubble observations of the smallest galaxies known help explain why so few of them exist

Milky Way’s Tiny Satellite Galaxies May Help Solve Dark Matter Mystery
Hubble observations of the smallest galaxies known help explain why so few of them exist

Five Billion Years of Solitude: Looking for Longevity [Excerpt]
In this excerpt from Five Billion Years of Solitude author Lee Billings chronicles the pioneering scientists who have led the hunt for extraterrestrial intelligence in their quest to answer the haunting question: Is humanity alone in the universe?


Watch a Short (and Fun) History of Dark Matter
Mysterious dark matter is responsible for our existence in the Milky Way galaxy, as revealed in this video for a new show at New York City’s Hayden Planetarium

Center of Attention: Space Telescope May Hone in on Heart of the Milky Way in Hunt for Dark Matter
The Fermi Gamma-Ray Space Telescope team is considering a new observing strategy that would focus on the center of the galaxy

“Genius” Grant Statistician Says, “I Can’t Be Anything Else”
2013 MacArthur picks include scientists taking on prosthetics, audio preservation and describing planets beyond our solar system

Universe May Be Curved, Not Flat
Anomalies in the universe's relic radiation could contradict the evidence for a level cosmos

How about a Hug?! Nearby Galaxy Cluster Has Giant Plasma Arms
The strongest of these bright arms reaches out from the center of the Coma Cluster toward a small subgroup of galaxies, called NGC 4911, about 2.1 million light-years away

Too Big to Fail? The Green Bank Telescope’s Uncertain Future
A budget struggle has the world's largest steerable radio telescope making sacrifices in the name of science

A Supergiant Star Goes Missing, and a Supernova Mystery Is Solved
What once appeared to be an unremarkable star among billions in the Whirlpool Galaxy has vanished in a brilliant supernova

Andromeda Beckons Across The Void
The Andromeda galaxy holds a particular fascination.

Scientists to Discuss Universe's Strange Dense Spot Wednesday: Watch Live
The big bang should have distributed matter evenly throughout the universe. So why is there a big dense spot?

Milky Way Black Hole Had Hungry Past
A huge cloud of plasma south of our galactic black hole could be evidence of a past feeding frenzy. John Matson reports