Fermi Gamma-ray Space Telescope
Nearby pulsar a likely source of high-energy antimatter cosmic rays
Colliding neutron stars likely formed low-mass black hole
NASA space observatories reveal surprising monster black hole connection
Possible link between primordial black holes and dark matter
Dark matter is a mysterious substance composing most of the material universe, now widely thought to be some form of massive exotic particle. An intriguing alternative view is that dark matter is made of black holes formed during the first second of our universe’s existence, known as primordial black holes.
Gamma rays from distant blazar galaxy tell story of an epic escape
In April 2015, after travelling for about half the age of the universe, a flood of powerful gamma rays from a distant galaxy slammed into Earth’s atmosphere. Observations of PKS 1441+25, a rare type of galaxy called a blazar, provide a look into the environment near a supermassive black hole at the galaxy’s centre and offer a glimpse into the state of the cosmos 7 billion years ago.