Dark times for dark matter?

Dark matter, which can be detected only thanks to its gravitational influence, remains a mystery after decades of research. Because it helps explain most observations quite well, a majority of astronomers however supports the theory. Why then haven’t we been able to identify its nature, or just prove its existence? …

No faster-than-light neutrinos, in the end?

A controversy appeared a few months ago: scientists claimed they observed neutrinos traveling at faster-than-light speeds. This result was then highly debated, as it apparently violates Einstein’s special relativity, which says that nothing can move faster than light.
Among the ones questioning these results (that is to say almost everybody…), a …

Milky Way’s mysterious haze

Researchers have just discovered a mysterious “humming” in the core of our galaxy: the Milky Way emits an important amount of microwave radiation, and its origin remains unknown. New cold gas clouds of carbon monoxide have also been discovered, helping astronomers locating star-forming regions.
The main objective of the Planck satellite, …

Weighing antimatter

Does antimatter behave like matter in gravity? This is the question a team of researchers wants to answer in the near future. If their behaviors happen to be different, it would have extremely important implications, and could maybe solve several long-standing problems.
Scientists from the University of California are on their …

Dark matter just got darker

According to the standard model of cosmology, each galaxy contains huge amounts of dark matter, which can only be detected thanks to its gravitational pull. Without it, galaxies would be torn apart, with their stars flying away from each other. Dark matter’s nature remains a mystery, a mystery that has …

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