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Comet 2I/Borisov Has an Unusual Composition

Interstellar comet 2I/Borisov, a mysterious visitor from the depths of space, is the first conclusively identified comet from another star. The comet consists of a loose agglomeration of ices and dust particles, and is likely no more than 3,200 feet across, about the length of nine football fields. ALMA observed hydrogen cyanide gas (HCN) and carbon monoxide gas (CO) ejected out of the comet as it approached the Sun and heated up. The ALMA images show that the comet contains an unusually large amount of CO gas. ALMA is the first telescope to measure the gases originating directly from the nucleus of an object that travelled to us from another planetary system.

ALMA Peers into the Turbulent Atmosphere of Jupiter

Swirling clouds, big colorful belts of sinking gas, and giant storms. What can radio telescopes detect below the visible clouds of Jupiter? What is causing the many storms and eruptions that we see hovering around the planet? The Atacama Large Millimeter/submillimeter Array (ALMA), observing in radio wavelengths, gives us the first view of Jupiter’s atmosphere down to fifty kilometers below the planet’s three different cloud layers, or decks.

VLA Background 4

Comet 2I/Borisov Has an Unusual Composition

ALMA Peers into the Turbulent Atmosphere of Jupiter

Circumplanetary Disk Discovered Poster

Salt Discovered Around Massive Young Star poster

Star Formation Across the Universe Poster

The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
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