News

VLBA Returning to NRAO, Getting Technical Upgrade

VLBA Returning to NRAO, Getting Technical Upgrade

Continent-Wide Radio Telescope System Once Again Part of NRAO The National Science Foundation’s Very Long Baseline Array (VLBA), a continent-wide radio telescope system, will once again officially be a part of the National Radio Astronomy Observatory (NRAO) and will undergo a technical upgrade to significantly improve its capabilities. When a new...

Image Release: ALMA Maps Europa’s Temperature

Image Release: ALMA Maps Europa’s Temperature

First Spatially Resolved, Complete Thermal Data Set of Jupiter's Icy Moon Jupiter’s icy moon Europa has a chaotic surface terrain that is fractured and cracked, suggesting a long-standing history of geologic activity. A new series of four images of Europa taken with the Atacama Large Millimeter/submillimeter Array (ALMA) has helped astronomers...

When Is a Nova Not a ‘Nova’? When a White Dwarf and a Brown Dwarf Collide

When Is a Nova Not a ‘Nova’? When a White Dwarf and a Brown Dwarf Collide

Synopsis: Using ALMA, an international team of astronomers found evidence that a white dwarf (the elderly remains of a Sun-like star) and a brown dwarf (a failed star without the mass to sustain nuclear fusion) collided in a short-lived blaze of glory that was witnessed on Earth in 1670 as Nova sub Capite Cygni (a New Star below the Head of the...

VLA Discovers Powerful Jet Coming from “Wrong” Kind of Star

VLA Discovers Powerful Jet Coming from “Wrong” Kind of Star

Astronomers using the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) have discovered a fast-moving jet of material propelled outward from a type of neutron star previously thought incapable of launching such a jet. The discovery, the scientists said, requires them to fundamentally revise their ideas about how such jets...