A joint Fermilab/SLAC publication

Fermi Gamma-ray Space Telescope

Image: Black widow pulsar

‘Black widow’ pulsars consume their mates

With a deadly embrace, ‘spidery’ pulsars devour their partners. One such pulsar is the first rapidly spinning black widow to be discovered using only gamma rays.

Photo: Virtual Field Trip to SLAC

Virtual field trips take students into the labs

Teachers are using Google+ to bring their classes behind the scenes at national laboratories and to teach students about careers in STEM.

Image: Gamma-ray-only pulsar

Scientists pinpoint ‘very peculiar’ pulsar

Scientists studying five years of data from the Fermi Gamma-ray Space Telescope have found the first gamma-ray variable pulsar. But is it really what it seems?

Image: Breaking: Gravitational Lens

Astrophysicists use lens to study black-hole jet

Using an entire galaxy as a lens to look at an object in the far distance, researchers are learning more about powerful jets emitted when matter falls into a black hole.

Image: Breaking: Cosmic explosion calls theory into question

Cosmic explosion calls theory into question

Observations of a rare cosmic explosion challenge scientists’ theoretical understanding of how gamma-ray bursts work.

Fermi first five years: FGST in space

Fermi’s first five years

In its first five years gazing at the gamma-ray sky, the Fermi Gamma-ray Space Telescope provided new insights into cosmic puzzles ranging from dark matter to blazars—and added a few new puzz

Image: Supernova shockwave

Cosmic rays born in supernova aftermath

One hundred years after the discovery of cosmic rays, a team of particle astrophysicists has definitively determined one source of these abundant yet enigmatic particles.

Image: Dark Universe Feature Header

Illuminating the dark universe

The pursuit of dark matter and dark energy is one of the most exciting—and most challenging—areas of science.

Image: Roger Romani

Stellar black widows entrap companion stars

Of the hundreds of objects in the universe emitting gamma rays, two look to be "black widows," ancient stars extending their lives by sucking in material from companion stars.

Image: Fermi Symposium 2012

Social scientists: Far-flung physicists meet face-to-face

A tidal wave of gamma-ray scientists swept into Monterey, California, for the Fourth International Fermi Symposium, and despite the idyllic photo of a lovely local beach that graced the event poste