Dwarf galaxies are what they say on the tin, these galaxies are tiny compared to galaxies like our own, which contains hundreds of billions of stars. These dwarfs only contain several billion.
A new measurement from the MINOS neutrino experiment today announced an unexpected variance in a property of neutrinos versus antineutrinos. This mass difference parameter, called Δm2 (“delta m squared”), is smaller by approximately 40 percent for neutrinos than for antineutrinos.
This image shows the symbiotic system known as CH Cyg, located only about 800 light years from Earth.
It's been just over two months since the first high-energy proton collisions took place in the Large Hadron Collider, and scientists from the LHC experiments have been working feverishly to analyze the data now pouring from their detectors. The results of the first analyses using real LHC data are being presented this week at the "Physics at LHC" conference at the DESY laboratory in Hamburg, Germany.