Search results for Fermi wavelength

Astronomy Dec 9, 2021

Mini-jet found near Milky Way's supermassive black hole

Our Milky Way's central black hole has a leak. This supermassive black hole looks like it still has the vestiges of a blowtorch-like jet dating back several thousand years. NASA's Hubble Space Telescope hasn't photographed ...

Astronomy Sep 15, 2021

NASA provides laser for LISA mission

Finding the biggest collisions in the universe takes time, patience, and super steady lasers.

Astronomy May 17, 2021

Dark Energy Spectroscopic Instrument (DESI) starts 5-year survey

A five-year quest to map the universe and unravel the mysteries of "dark energy" is beginning officially today, May 17, at Kitt Peak National Observatory near Tucson, Arizona. To complete its quest, the Dark Energy Spectroscopic ...

Optics & Photonics May 13, 2021

Non-linear optics meets X-rays

The recent advent of femtosecond X-ray sources offers unprecedented opportunities for structural and dynamical studies. It requires, however, manipulating spectral properties, as commonly done by non-linear optics at visible/infrared ...

Optics & Photonics Apr 22, 2021

Transient grating spectroscopy with ultrafast X-rays

Researchers at the Paul Scherrer Institute PSI have succeeded for the first time in looking inside materials using the method of transient grating spectroscopy with ultrafast X-rays at SwissFEL. The experiment at PSI is a ...

Astronomy Apr 14, 2021

Telescopes unite in unprecedented observations of famous black hole

In April 2019, scientists released the first image of a black hole in galaxy M87 using the Event Horizon Telescope (EHT). However, that remarkable achievement was just the beginning of the science story to be told.

General Physics Mar 24, 2021

Searching for hints of new physics in the subatomic world

Peer deeper into the heart of the atom than any microscope allows and scientists hypothesize that you will find a rich world of particles popping in and out of the vacuum, decaying into other particles, and adding to the ...

General Physics Mar 19, 2021

Method for determining electron beam properties could help future ultraviolet, X-ray synchrotron light sources

The detected intensity from two coherent point-like light sources depends on their relative positions. It is a well-known phenomenon called optical interference. In general, the intensity can range from zero (destructive ...

Astronomy Mar 1, 2021

The distance to the North Polar Spur

One of the largest structures in the Milky Way galaxy, the North Polar Spur, was discovered at radio and X-ray wavelengths. The Spur is a giant ridge of bright emission that rises roughly perpendicularly out of the plane ...

Astronomy Mar 1, 2021

Gamma-ray and optical flares detected from the blazar S5 1803+784

Using NASA's Fermi spacecraft, astronomers have conducted a long-term monitoring campaign of a blazar known as S5 1803+784 and have identified several gamma-ray and optical flares from this source. The finding is detailed ...

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