Scorpius X-1, showing a flare of the object's core.

Dramatic Movie of a Cosmic Jet

Astronomers using a world-wide collection of radio telescopes, including the National Science Foundation’s Very Long Baseline Array of the National Radio Astronomy Observatory, have made a dramatic movie of a voracious, superdense neutron star repeatedly spitting out subatomic particles at nearly the speed of light.

Infrared image of part of the Cepheus A star-forming region

Young Star Burping Spheres of Gas

A young star more than 2,000 light-years away in the constellation Cepheus may be belching out spheres of gas, ejecting them repeatedly — phenomena not predicted by current theories of how young stars shed matter.

Arecibo-GBT radar image of Venus

GBT’s First Scientific Observations

The world’s two largest radio telescopes have combined to make detailed radar images of the cloud-shrouded surface of Venus and of a tiny asteroid that passed near the Earth.

The VLA 11

First Radio Emission Seen from a Brown Dwarf

A group of summer students making a long-shot astronomical gamble with the National Science Foundation’s Very Large Array have found the first radio emission ever detected from a brown dwarf.

The Robert C. Byrd Green Bank Telescope.

Decision Announced in GBT Arbritration Case

A decision has been reached by the arbitrator in the dispute between COMSAT Corporation, now part of Lockheed-Martin Global Telecommunications, and Associated Universities, Inc regarding additional costs on the contract to design and construct the Green Bank Telescope.

The VLA 11

U.S.-Canadian Partner in ALMA and EVLA

The United States and Canada intend to collaborate on two of the most important radio astronomy projects of the new century — the Atacama Large Millimeter Array and the Expanded Very Large Array.