The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Collaboration MPIK/H.E.S.S. After over a decade of meticulous data collection, scientists ...

Ultra-high energy cosmic rays, which emerge in extreme astrophysical environments—like the roiling environments near black ...

New research suggests that these ultra-high energy rays derive their energy from magnetic turbulence. Ultra-high energy cosmic rays, which emerge in extreme astrophysical environments -- like the ...

Nature Research Intelligence Topics Topic summaries Physical Sciences Astronomical Sciences High Energy Astrophysics and Galactic Cosmic Rays High energy astrophysics probes the most energetic ...

In a new study, Dartmouth researchers rule out a controversial theory that the accelerating expansion of the universe is an illusion. While the findings don’t explain the cosmic speed-up, they ...

High energy astrophysics probes the most energetic phenomena in the Universe, from explosive supernova remnants to the powerful outflows near compact objects. A central focus of this field is the ...