The cosmic pinwheel that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once ...

"This field did not exist before 1989 when the first gamma ray source was detected. At that point, we knew of four sources in the world," said Dave Kieda, professor in the Department of Physics ...

In other words, we’ll soon have a record-breaking observatory for studying gamma ray sources—some of the most energetic and mysterious objects in the universe. The observatory’s full name is ...

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film ...

Gamma rays are high energy electromagnetic ... free of viruses and bacteria and be safe for use with patients. it may not kill all bacteria on an object; it can be very harmful - standing in ...

(Things with more mass have stronger gravitational pulls.) Astronomers like Cendes are now watching the aftermath of the dramatic gamma-ray burst using powerful telescopes, like the Submillimeter ...

We even use radio waves in astronomy ... are used for surgery. X-rays are also used in airport security scanners and to detect broken pipes underground. Gamma rays are also used to produce ...

and BL Lacertae objects (BL Lacs), which do not. PKS 0727-11 is an FSRQ at a redshift of approximately 1.59, associated with the gamma-ray source 4FGL J0730.3-1141. It was first identified in 1966 ...