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ALMA Detects Hallmark “Wiggle” of Gravitational Instability in Planet-Forming Disk
September 4, 2024 at 11:00 am | News Release

Traditionally, planet formation has been described as a “bottom-up” process, as dust grains gradually collect into bigger conglomerations over…

SuperKnova instructor Jesse Alexander (WB2IFS) with students Sullivan Gutierrez Torres, Logan Slimp, and Nejon McBride-Stubbs (KJ5AXD), from the pilot cohort at the HamSCI 2023 Workshop.
Unlock the Secrets of the Invisible Radio Universe with SuperKnova®
August 28, 2024 at 8:00 am | News Release

Wireless technology is central to our modern world. You may be reading these words on a smartphone or tablet…

This artist’s impression shows the locations of multiple radio observatories across the planet, which participated in a pilot experiment conducted by the Event Horizon Telescope (EHT) Collaboration that obtained the highest-resolution observations from the ground. The test observations detected light from distant galaxies at a wavelength of 0.87 mm and were made with some of the observatories (in red) that are part of the EHT, a virtual Earth-sized telescope. One of these distant, point-like galaxies is represented on the top right, sending out radio signals all the way to Earth. While non-ideal weather conditions hampered the observations at some of the sites, the team was able to observe multiple galaxies using multiple stations. Robust detections were made using different pairs of telescopes, indicated as glowing dots: the Atacama Large Millimeter/submillimeter Array (ALMA) and the Atacama Pathfinder EXperiment (APEX) in the Atacama Desert in Chile, ALMA and the IRAM 30-meter telescope in Spain, and ALMA and the Submillimeter Array in Hawaiʻi. The EHT Collaboration is famous for connecting telescopes around the world, using a technique called very long baseline interferometry, to obtain images of supermassive black holes. Previous EHT observations were made at a wavelength of 1.3 mm. By observing a distant active galaxy at a lower wavelength, researchers were able to capture even higher resolution images without forming a bigger virtual telescope.   
Astronomers Make Highest-Resolution Observations Ever from Earth
August 27, 2024 at 9:00 am | News Release

The Event Horizon Telescope (EHT) Collaboration has conducted test observations with the highest resolution ever obtained from the surface…

The NSF Green Bank Telescope.
Astronomers, Satellite Internet Provider Develop New System to Share the Sky
August 9, 2024 at 8:00 am | News Release

Astronomers learn about the universe by pointing their telescopes to the sky. But what happens when a satellite comes between them and the cosmological objects they hope to study? New cooperative work between the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) and SpaceX shows a way to share this finite resource between radio astronomers and industry.

Artist's illustration of a magnetar, surrounded by the plasma bubble responsible for the persistent emission observed in some fast radio bursts.
Plasma Bubbles and the “Engine” of Fast Radio Bursts
August 7, 2024 at 7:52 am | News Release

An international team of astronomers has demonstrated that this persistent radiation originates from a plasma bubble, shedding new light on the enigmatic sources powering these cosmic phenomena.

Artist's conception of a magnetar -- a superdense neutron star with an extremely strong magnetic field. In this illustration, the magnetar is emitting a burst of radiation.
Precision Measurements Offer Clues to Magnetar’s Cosmic Origin
August 6, 2024 at 1:00 pm | News Release

An international team of astronomers have used a powerful array of radio telescopes to discover new insights about a magnetar that’s only a few hundred years old. By capturing precise measurements of the magnetar’s position and velocity, new clues emerge regarding its developmental path.

Showing news items 231 - 240 of 977