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Cosmic Rays News
December 8, 2019

Top Headlines
 

Since its 2018 launch, NASA's Parker Solar Probe (record-holder for closest-ever spacecraft to the Sun) has finished three of 24 planned passes through never-before-explored ... read more
Astrophysicists employed massive super-computer simulations to calculate the mechanisms that accelerate charged particles in extreme environments. They concluded their ... read more
Researchers have taken a new and significant step toward detecting a signal from the period in cosmic history when the first stars lit up ... read more
Researchers have observed a gamma-ray burst with an afterglow that featured the highest energy photons -- a trillion times more energetic than visible light -- ever detected ... read more
Latest Headlines
updated 4:49am EST

Earlier Headlines
 

Pressure Runs High at Edge of Solar System

Out at the boundary of our solar system, pressure runs high. This pressure, the force plasma, magnetic fields and particles like ions, cosmic rays and electrons exert on one another when they flow ... read more

This Is How a 'Fuzzy' Universe May Have Looked

Scientists have found that the early universe, and the very first galaxies, would have looked very different depending on the nature of dark matter. For the first time, the team has simulated what ... read more

New Model Proposes Jets Go Superluminal in Gamma-Ray Bursts

Blasts that create gamma-ray bursts may actually exceed the speed of light in surrounding gas clouds, but do so without violating Einstein's theory of ... read more

New Hunt for Dark Matter

Dark matter is only known by its effect on massive astronomical bodies, but has yet to be directly observed or even identified. A theory about what dark matter might be suggests that it could be a ... read more

Most Massive Neutron Star Ever Detected, Almost Too Massive to Exist

Astronomers have discovered the most massive neutron star to date, a rapidly spinning pulsar approximately 4,600 light-years from Earth. This record-breaking object is teetering on the edge of ... read more

Deepest Optical Image of First Neutron Star Merger

Astronomers have painstakingly constructed the afterglow of GW170817, the historic neutron star merger captured in 2017, using images from the Hubble Space ... read more

Astronomers Find a Golden Glow from a Distant Stellar Collision

Astronomers have re-examined data from a gamma-ray burst spotted in August 2016 and found new evidence for a kilonova -- a turbocharged explosion that instantly forged several hundred planets' ... read more

Maximum Mass of Lightest Neutrino Revealed Using Astronomical Big Data

The mass of the lightest neutrino, an abundant 'ghost' particle found throughout the universe, has been calculated to be at least 6 million times lighter than the mass of an ... read more

Temperatures of 800 Billion Degrees in the Cosmic Kitchen

It is among the most spectacular events in the universe: a merger of neutron stars. Astronomers have completed the first laboratory measurements of thermal electromagnetic radiation arising in such ... read more

Stardust in the Antarctic Snow

The rare isotope iron-60 is created in massive stellar explosions. Only a very small amount of this isotope reaches the earth from distant stars. Now, a research team has discovered iron-60 in ... read more

Moon Glows Brighter Than Sun in Images from NASA's Fermi

If our eyes could see gamma rays, the Moon would appear brighter than the Sun! That's how NASA's Fermi Gamma-ray Space Telescope has seen our neighbor in space for the past ... read more

Finding a Cosmic Fog Within Shattered Intergalactic Pancakes

In a new study, researchers report on the most detailed simulation ever of a large patch of the intergalactic medium (IGM). For the first time, they were able to see how cold, dense gas clouds in the ... read more

Dark Matter May Be Older Than the Big Bang

Dark matter, which researchers believe make up about 80% of the universe's mass, is one of the most elusive mysteries in modern physics. What exactly it is and how it came to be is a mystery, ... read more

How Deep Space Travel Could Affect the Brain

Exposure to chronic, low dose radiation -- the conditions present in deep space -- causes neural and behavioral impairments in mice, researchers report. These results highlight the pressing need to ... read more

Scientists Reproduce the Dynamics Behind Astrophysical Shocks

Article describes first laboratory measurement of the precursors to high-energy astronomical ... read more

Balancing Beams: Multiple Laser Beamlets Show Better Electron and Ion Acceleration

Researchers show how creating interference patterns with four laser beamlets improves the efficiency of energy transfer when accelerating electron and ion beams. This method can be used to enhance ... read more

New Telescope Gives Peek at the Birth of the Universe

The Square Kilometre Array (SKA) is set to become the largest radio telescope on Earth. Researchers have now examined the SKA-MPG telescope -- a prototype for the part of the SKA that receives ... read more

New Terahertz Sensors Work at Room Temperature, Unlike Current Technology

Researchers have developed an ultra-sensitive light-detecting system that could enable astronomers to view galaxies, stars and planetary systems in superb ... read more

New Method May Resolve Difficulty in Measuring Universe's Expansion

Radio telescope observations have made it possible for astronomers to use mergers of neutron-star pairs as a valuable new tool for measuring the Universe's ... read more

Tracking Down Dark Matter

Over time, scientists have developed different theories to explain exactly what the mysterious dark matter might be made of. Researchers have now found a way of detecting axions with the help of the ... read more

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