NASA Reveals Alien Composition of 2I/Borisov, 1st Interstellar Comet
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4 سال پیش
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When amateur astronomer Gennady Borisov
When amateur astronomer Gennady Borisov discovered an interstellar comet zipping through our solar system on Aug. 30, 2019, scientists promptly turned their telescopes toward it hoping to catch a glimpse of this rare and ephemeral event. After all, no one had ever set eyes on a confirmed comet from a foreign star system, and it was clear from its projected trajectory that the alien visitor, named 2I/Borisov, would soon disappear from the sky forever.
Before it dimmed from view, a team of international scientists led by Martin Cordiner and Stefanie Milam at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, probed it with the world’s most powerful radio telescope: the Atacama Large Millimeter/submillimeter Array (ALMA) in northern Chile. The comet was near its closest approach to Earth at about 180 million miles, or nearly 300 million kilometers, away.
When the scientists peeked inside the halo of gas that formed around the comet as it came closer to the Sun and its ices began to vaporize, they detected something peculiar: 2I/Borisov was releasing gas with a greater concentration of carbon monoxide (CO) than anyone had detected in any comet at a similar distance from the Sun (within less than 186 million miles, or 300 million kilometers). 2I/Borisov’s CO concentration was estimated to be between nine and 26 times higher than that of the average solar system comet.
Until more interstellar comets are observed, this result raises more questions than it answers.
Read more: https://solarsystem.nasa.gov/news/120...
Music Credit: "Tides" from Universal Production Music
Video Credit: NASA's Goddard Space Flight Center
James Tralie (ADNET):
Lead Producer
Lead Editor
Narrator
Lonnie Shekhtman (ADNET):
Lead Writer
Martin Cordiner (Catholic University of America):
Scientist
Stefanie Milam (NASA/GSFC):
Scientist
Aaron E. Lepsch (ADNET):
Technical Support
This video is public domain and along with other supporting visualizations can be downloaded from NASA Goddard's Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/13582
If you liked this video, subscribe to the NASA Goddard YouTube channel: nasaexplorer
Follow NASA’s Goddard Space Flight Center
· Instagram Instagram: nasagoddard
· Twitter Twitter: NASAGoddard
· Twitter Twitter: NASAGoddardPix
· Facebook: Facebook: NASA.GSFC
· Flickr http://www.flickr.com/photos/gsfc
Before it dimmed from view, a team of international scientists led by Martin Cordiner and Stefanie Milam at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, probed it with the world’s most powerful radio telescope: the Atacama Large Millimeter/submillimeter Array (ALMA) in northern Chile. The comet was near its closest approach to Earth at about 180 million miles, or nearly 300 million kilometers, away.
When the scientists peeked inside the halo of gas that formed around the comet as it came closer to the Sun and its ices began to vaporize, they detected something peculiar: 2I/Borisov was releasing gas with a greater concentration of carbon monoxide (CO) than anyone had detected in any comet at a similar distance from the Sun (within less than 186 million miles, or 300 million kilometers). 2I/Borisov’s CO concentration was estimated to be between nine and 26 times higher than that of the average solar system comet.
Until more interstellar comets are observed, this result raises more questions than it answers.
Read more: https://solarsystem.nasa.gov/news/120...
Music Credit: "Tides" from Universal Production Music
Video Credit: NASA's Goddard Space Flight Center
James Tralie (ADNET):
Lead Producer
Lead Editor
Narrator
Lonnie Shekhtman (ADNET):
Lead Writer
Martin Cordiner (Catholic University of America):
Scientist
Stefanie Milam (NASA/GSFC):
Scientist
Aaron E. Lepsch (ADNET):
Technical Support
This video is public domain and along with other supporting visualizations can be downloaded from NASA Goddard's Scientific Visualization Studio at: https://svs.gsfc.nasa.gov/13582
If you liked this video, subscribe to the NASA Goddard YouTube channel: nasaexplorer
Follow NASA’s Goddard Space Flight Center
· Instagram Instagram: nasagoddard
· Twitter Twitter: NASAGoddard
· Twitter Twitter: NASAGoddardPix
· Facebook: Facebook: NASA.GSFC
· Flickr http://www.flickr.com/photos/gsfc
4 سال پیش
در تاریخ 1399/02/01 منتشر شده
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