Early massive galaxies—those that formed in the three billion years following the Big Bang—should have contained large amounts of cold hydrogen gas, the fuel required to make stars. But scientists observing the early Universe with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Hubble Space Telescope have spotted something strange: half a dozen early massive galaxies that ran out of fuel.
Atacama Large Millimeter/submillimeter Array
The Atacama Large Millimeter/submillimeter Array in the Atacama Desert, Chile, is the most complex observatory ever built.
Very Long Baseline Array
The Very Long Baseline Array (VLBA) is ten radio telescopes stationed across 5,351 miles. It’s the world’s sharpest, dedicated telescope array.
On a clear dark night, the plane of our Galaxy can be seen arching overhead, filled with bright stars…
This article was originally published in Medium on March 9, 2021. Some changes have been made to the original…
One of the great things about being a radio astronomer is that if you have a good idea, and…
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In November 2020, Oscar Le, a high school teacher from Northern Virginia, contacted us on behalf of one of…
One of the many things shared by the astronomical objects observed by NRAO radio telescopes and its Education and…
Astronomy is all about our origin: where do we come from? What is the origin of the Earth and…
ALMA First ImageIn this composite image of the merging cores of the Antennae Galaxies, optical (white and pink), radio (blue) and millimeter/submillimeter (orange and gold) images are combined to show the history and future of star formation. The optical image represents stars that are shining now. The radio image highlights gas that is probably too thin to become a star, and at the mm/submm wavelengths we can see the areas where new stars will likely form.
NRAO Making Waves
Announcements and Achievements
IMAGE RELEASE: Moon’s Tycho Crater Revealed in Intricate Detail
The National Science Foundation’s Green Bank Observatory and National Radio Astronomy Observatory, and Raytheon Intelligence & Space have released new high-resolution images of the Moon, the highest-ever taken from the ground, using new radar technology on the Green Bank Telescope (GBT).
NRAO Congratulates Winners of Breakthrough Prize Awards
The National Radio Astronomy Observatory congratulates four astronomers who earned Breakthrough Prize Foundation awards for their outstanding research on a collision between two neutron stars. Their work made extensive use of the VLA and VLBA.
Nine Children of NRAO Staff Among Recipients of 2021 AUI Scholarship
Fourteen outstanding high school seniors were selected for the AUI 2021 Scholarship—including 9 children of NRAO staff. Each scholarship awardee will receive a $3,500 scholarship, renewable for up to four years.
AUI and NRAO Announce NAC Bridge Scholarship Award
AUI and NRAO have announced the establishment of the National Astronomy Consortium (NAC) Bridge Scholarship Award program to assist and recognize NAC alums on their achievements as they enter graduate school.
Using this web application, explore how interferometry is used in radio astronomy. Move antennae to create your own array and run observation simulations.
A galaxy is an island of stars floating on a plate of dark matter, or so the theory goes.