When I was a child in the 1970s, seeing satellites pass overhead in the night sky was a rare event. Now, it is commonplace; sit outside for a few minutes after dark, and you can’t miss them. Thousands of satellites have been launched into Earth orbit over the past decade or so, with tens of ...
Every day and night, hundreds of thousands of intense, brief flashes of radiation suddenly flicker on and then off all across the sky. These “fast radio bursts” are invisible to the naked eye, but to a radio telescope, many almost outshine everything else in the sky for a few thousandths of a second. Since the ...
Astronomers have been working to better understand the galactic environments of fast radio bursts (FRBs) — intense, momentary bursts of energy occurring in mere milliseconds and with unknown cosmic origins. Now, a study of the slow-moving, star-forming gas in the same galaxy found to host an FRB has been published in The Astrophysical Journal. This ...
In the 1997 movie Contact, Ellie Arroway is a young radio astronomy scientist played by Jodie Foster. Ellie’s on a mission to discover alien life, and in one famous scene filmed at the Very Large Array, she sits at the edge of the observatory, listening to the radio sounds of the sky with antenna dishes in ...
The Breakthrough Listen Initiative released data from the most comprehensive survey yet of radio emissions from the plane of the Milky Way Galaxy and the region around its central black hole, and it is inviting the public to search the data for signals from intelligent civilizations. At a media briefing in Seattle as part of ...
We’ve been staring at the stars and wondering what was up there for centuries. We’ve been using mirrors and prisms to construct telescopes to give us a better idea of what mysteries lie in the black, but we’re still limited in how far we can see. The FAST telescope in China is hoping to change ...
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