Astronomers have managed to detect very long wavelength radio emission from a well-studied, repeating fast radio burst, called FRB 20180916B. What’s more, the longer wavelengths arrive 3 days after the shorter wavelength counterpart of the signal! Why?
FRB 121102 is one of the few known repeating fast radio bursts, and astronomers are trying to use this new period of activity to understand it better. Some predict the current active phase should end sometime between August 31 and September 9. Will it?
For the first time, a fast radio burst has been found to be repeating, in a regular 16-day cycle. The baffling detection from the CHIME radio telescope deepens the mystery of these bizarre intergalactic objects.
Space-based observatories detected a violent explosion in a galaxy billions of light-years away. It became the brightest source of high-energy cosmic gamma rays seen so far. Specialized Earth-based telescopes detected it via faster-than-light particles cascading through Earth’s atmosphere.
Astronomers used radio waves to study conditions in the vicinity of Proxima Centauri, the nearest star to our sun. The results suggest Proxima’s 2 known planets are likely bathed in intense radiation from this star, casting doubt on the planets’ potential for life.
Researchers at Omni Calculator have created the Alien Civilization Calculator, a unique combination of two different methods of trying to determine how many advanced alien civilizations may exist in our galaxy.
“What if extraterrestrial intelligences are not like us, but are found in the frigid reaches of the outer solar system, the extreme gravity of neutron stars, the brilliant cores of active galaxies, or the hearts of the richest galaxy clusters?”
Cosmologists have only been able to find half the matter that should exist in the universe. With the discovery of a new astronomical phenomenon and new telescopes, these researchers say they’ve just found the rest.
Thirty-two years ago, Supernova 1987A erupted in the nearby Large Magellanic Cloud. Astronomers using the ALMA radio telescope now say they’ve found the small, compact neutron star created in this mighty star explosion.
Exoplanets – worlds orbiting distant suns – are very, very far away. Astronomers are learning what some might look like, and what’s in their atmospheres. Soon – for the first time – a new telescope will be able to “see inside” some exoplanets.
Supernovae, or exploding stars, are relatively common. But now astronomers have observed a baffling new type of cosmic explosion, believed to be some 10 to 100 times brighter than an ordinary supernova.
Since the 1970s, scientists have treated pulsars and magnetars as 2 distinct populations of objects. Now they think they might be stages in a single object’s evolution. A new NASA ScienceCast has more.