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artist's impression of radar waves from the NASA Goldstone Solar System Radar pinging one of Jupiter’s moons, Europa. The radar waves penetrate Europa’s icy surface before bouncing back to be collected by the NSF Green Bank Telescope on Earth.
Radar Echoes From Europa Reveal Secrets Beneath the Ice
June 16, 2026 at 5:15 pm | News Release

A team of scientists has used NASA’s Goldstone Solar System Radar and the U.S. National Science Foundation Green Bank…
artist's impression of radar waves from the NASA Goldstone Solar System Radar pinging one of Jupiter’s moons, Europa. The radar waves penetrate Europa’s icy surface before bouncing back to be collected by the NSF Green Bank Telescope on Earth.
NSF NRAO at 248th American Astronomical Society Meeting, Science Featured in Six Press Conferences
June 12, 2026 at 10:12 am | News Release

Astronomers using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) instruments are unveiling new scientific research…
2025 sandblasting, painting/recoating of the upper feedarm of the Green Bank Telescope by contractor Modjeski and Masters. Permission is granted by M&M for photo use by NRAO.
Painting the Giant: NSF Green Bank Telescope Gets Critical Makeover
May 11, 2026 at 10:12 am | News Release

The U.S. National Science Foundation Green Bank Telescope (NSF GBT), the world’s largest fully steerable radio telescope, will reach…
The pixels in the data in the upper left represent the Orion spacecraft. The vertical (range) axis indicates distance to the spacecraft with distance increasing downward in the image. The horizontal (Doppler) axis indicates a frequency shift from the expected return signal. This image of the Orion capsule was created while the spacecraft was over 213k miles (343k km) from Earth. Shared Will Armentrout, an NSF GBO scientist presenting to colleagues at the NSF GBO, “There are four people in those pixels.”
“There are 4 people in those pixels.” NSF Green Bank Observatory Shares Images, Data From Artemis II Mission
May 6, 2026 at 12:00 pm | News Release

The U.S. National Science Foundation Green Bank Telescope (NSF GBT) produced these data and images while supporting NASA’s Artemis…
The NSF Green Bank Telescope.
NSF Green Bank Telescope Tunes in to Artemis II
April 1, 2026 at 6:38 pm | News Release

The National Science Foundation’s Green Bank Telescope (NSF GBT) will support NASA’s Artemis II mission by helping to track…
Artist's impression of the NSF Green Bank Telescope gathering data on the center of the Milky Way. The inset image shows the black hole at our Galaxy's center, and a nearby candidate (unconfirmed) pulsar.
Breakthrough Listen, NSF Green Bank Telescope Probe Galactic Heart for Hidden Pulsars
February 9, 2026 at 12:04 pm | News Release

Astronomers from Breakthrough Listen have used the U.S. National Science Foundation National Radio Astronomy Observatory’s Green Bank Telescope (NSF…
This is an annotated composite image of Cloud-9, a Reionization-Limited H I Cloud (RELHIC), as captured by the Hubble Space Telescope’s ACS (Advanced Camera for Surveys) and the ground-based U.S. National Science Foundation Very Large Array (NSF VLA) radio telescope. The image shows a scale bar, compass arrows, and color key for reference. The scale bar is labeled in light-years along the top, which is the distance that light travels in one Earth-year. (It takes 2,000 years for light to travel a distance equal to the length of the scale bar.) One light-year is equal to about 5.88 trillion miles or 9.46 trillion kilometers. The scale bar is also labeled in arcseconds, which is a measure of angular distance on the sky. One arcsecond is equal an angular measurement of 1/3600 of one degree. There are 60 arcseconds in an arcminute and 60 arcminutes in a degree. (The full Moon has an angular diameter of about 30 arcminutes.) The actual size of an object that covers one arcsecond on the sky depends on its distance from the telescope. The north and east compass arrows show the orientation of the image on the sky. Note that the relationship between north and east on the sky (as seen from below) is flipped relative to direction arrows on a map of the ground (as seen from above). This image shows wavelengths of light, including radio waves, that have been translated into visible-light colors. The color key shows the two ACS filters used to collect the light, along with the NSF VLA’s radio-wave contribution. A color key shows F606W in blue, F814W in orange, and Radio NSF VLA in magenta.
NSF NRAO Radio Telescopes Help Reveal Cloud-9, a Starless Dark-Matter “Failed Galaxy” Near M94
January 5, 2026 at 12:14 pm | News Release

Astronomers using a powerful combination of radio and optical telescopes have confirmed that a peculiar gas cloud near the spiral galaxy M94 is a “failed” galaxy; a dark-matter-dominated halo filled with gas but entirely lacking stars.
The NSF Green Bank Telescope.
Astronomers Share Largest Molecular Survey To-date: GOTHAM Legacy Data Goes Public
October 23, 2025 at 12:46 pm | News Release

A groundbreaking new dataset from the U.S. National Science Foundation Green Bank Telescope (NSF GBT) is now publicly available,…
This collection of images shows the location of the CO-dark molecular gas in the constellation Cygnus X, and NSF Green Bank Telescope data of the gas in the galactic latitude and longitude.
Astronomers Map Mysterious “Dark” Gas in the Milky Way
October 23, 2025 at 12:37 pm | News Release

An international team of astronomers has created the first-ever large-scale maps of a mysterious form of matter, known as…
Astronomers Detect Lowest Mass Dark Object Yet in Distant Universe
Astronomers Detect Lowest Mass Dark Object Yet in Distant Universe
October 9, 2025 at 10:00 am | News Release

An international research team, using a worldwide network of radio telescopes, including the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) VLBA and GBT, has detected an enigmatic dark object with a mass about one million times that of our Sun without observing any emitted light. This is the lowest mass dark object ever detected at a cosmological distance using only its gravitational influence, marking a major milestone in the quest to unravel the nature of dark matter.
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