Scientists on the Hunt for Planetary Formation Fossils Reveal Unexpected Eccentricities in Nearby Debris Disk

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have imaged the debris disk of the nearby star HD 53143 at millimeter wavelengths for the first time, and it looks nothing like they expected. Based on early coronagraphic data, scientists expected ALMA to confirm the debris disk as a face-on ring peppered with clumps of dust. Instead, the observations took a surprise turn, revealing the most complicated and eccentric debris disk observed to date.

Future of Earth’s Defense is Ground-Based Planetary Radar

The Planetary Science Decadal Survey indicated that new ground-based radar systems will be vital research tools for planetary defense and studying planets, moons, asteroids, and other Solar System objects. The National Radio Astronomy Observatory and the Green Bank Observatory are developing new capabilities for the Green Bank Telescope and the Very Long Baseline Array that will meet those needs.

2021 Science Highlights: Looking Back on a Turbulent Year in Radio Astronomy

The formation of massive stars and planets. The deaths of stars and galaxies. The extreme and violent behaviors of black hole jets and quasars. An up-close and personal radar view of the Moon. These mysteries and more were unraveled in 2021 by radio astronomers leveraging the scientific and technological power of National Radio Astronomy Observatory (NRAO) facilities.

The Baseline #10 – How To Kick A Pulsar Out Of The Galaxy

Pulsars are neutron stars. They are formed when an old star explodes as a supernova, so you would expect to find them in the center of its supernova remnant. But not always. Astronomers have learned that some pulsars are ejected from its remnant. The Very Large Array has discovered one pulsar that is quite a kick.

Join our host Summer Ash of the National Radio Astronomy Observatory as she talks about how you can get a kick out of pulsars.

ALMA’s Most Scientifically Productive Receiver Will Soon See Further than Ever Before

The National Science Foundation (NSF) and the board of the Atacama Large Millimeter/submillimeter Array (ALMA) have approved a multi-million dollar upgrade project for the Observatory’s 1.3mm (Band 6) receivers through the North American ALMA Development Program. The receivers—originally built, and to be upgraded, by the Central Development Laboratory (CDL) at the National Radio Astronomy Observatory (NRAO)—are the most scientifically productive in ALMA’s lineup.