Dark matter and "baryon asymmetry" are two big mysteries in physics. Is there one, as yet undiscovered, particle responsible for both? Jennifer Ouellette investigates.
A pattern discovered in the cosmic microwave background radiation may chronicle what happened before the Big Bang.
By focusing a giant cosmic lens on the distant galaxy cluster known as Abell 1689, astronomers have used the Hubble Space Telescope to create the most detailed maps of dark matter ever constructed.
The Nobel Prizes are won, but I was rooting for astronomer Vera Rubin, now 82, whose quiet, unassuming demeanor might seem incongruent with her extraordinary career in science.
After nine years of mapping the slight temperature variations in the cosmic microwave background radiation, WMAP's job is done and has been sent into a "graveyard orbit" around the sun.
The scales are mind-boggling and the physics is cutting edge, so how do you go about visualizing the collision of two galactic clusters?
What may end up being the crown jewel of the International Space Station landed at the Kennedy Space Center in Florida on Thursday to begin preparations for launch on the last shuttle mission in February.
A decade ago it would have been hard to predict what would have made it to the top of the list of cosmic mysteries now confronting astronomers.
Astronomers have discovered the origin of mysterious hydrogen clouds that lie outside the Milky Way's disk.
The Higgs boson is theorized to give all matter mass, but in an effort to find this elusive particle, the most powerful and expensive particle accelerator had to be built. How will the quest to find the Higgs impact our everyday lives?
