Using the super-sharp radio vision of astronomy’s most precise telescope, scientists have extended a directly-measured yardstick three times farther into the cosmos than ever before, an achievement with important implications for numerous areas of astrophysics, including determining the nature of Dark Energy, which constitutes 70 percent of the Universe.
Students Excited by Stellar Discovery
In the constellation of Ophiuchus, above the disk of our Milky Way Galaxy, there lurks a stellar corpse spinning 30 times per second — an exotic star known as a radio pulsar.
NRAO Astronomer Honored by American Astronomical Society
Dr Scott Ransom, an astronomer at the National Radio Astronomy Observatory, received the American Astronomical Society’s Helen B Warner Prize on January 11, at the society’s meeting in Seattle, Washington.
Surprise: Dwarf Galaxy Harbors Supermassive Black Hole
The surprising discovery of a supermassive black hole in a small nearby galaxy has given astronomers a tantalizing look at how black holes and galaxies may have grown in the early history of the Universe.
Moon Helps Corral Elusive Cosmic Particles
Seeking to detect mysterious, ultra-high-energy neutrinos from distant regions of space, a team of astronomers used the Moon as part of an innovative telescope system for the search. Their work gave new insight on the possible origin of the elusive subatomic particles and points the way to opening a new view of the Universe in the future.
Magnetism Common to All Cosmic Jets
Astronomers have found the first evidence of a magnetic field in a jet of material ejected from a young star, a discovery that points toward future breakthroughs in understanding the nature of all types of cosmic jets and of the role of magnetic fields in star formation.