Read article 'Gaia finds evidence of old Milky Way merger'
Gaia finds evidence of old Milky Way merger
Many of the stars appearing in the night sky did not originate from within our galaxy.
Read article 'Gaia finds evidence of old Milky Way merger'
Read article 'Particle physics meets astrophysics and gravity'
Particle physics meets astrophysics and gravity
The 7th International Conference on New Frontiers in Physics (ICNFP 2018) took place on 4–12 July in Kolymbari, Crete.
Read article 'Gravitational hunt for extra dimensions'
Gravitational hunt for extra dimensions
If extra dimensions are large, part of the gravitational field would “leak” into the extra dimensions and gravitational waves would be weaker than expected.
Read article 'Particle interactions up to the highest energies'
Particle interactions up to the highest energies
The 20th International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2018) was held in Nagoya, Japan.
Read article 'Solving the mystery of a historic stellar blast'
Solving the mystery of a historic stellar blast
Some 180 years ago, a relatively normal star called Eta Carinae suddenly brightened to become the second brightest star in the sky, before almost disappearing at the end of the 19th century.
Read article 'Elephants in the gamma-ray sky'
Elephants in the gamma-ray sky
The discovery of large-scale features in the gamma-ray sky in approximately the same direction continues to puzzle researchers.
Read article 'Relativity passes test on a galactic scale'
Relativity passes test on a galactic scale
Gravity behaves the same way on a galactic scale as it does in our solar system, and alternative gravity models which remove the need for dark energy are disfavoured.
Read article 'Black holes galore at galactic core'
Black holes galore at galactic core
NASA’s Chandra X-ray Observatory have revealed a dozen stellar-mass black holes at the centre of the galaxy, providing the first observational evidence for such a black-hole cluster.
Read article 'HESS proves the power of TeV astronomy'
HESS proves the power of TeV astronomy
To celebrate its 15th anniversary, the HESS collaboration has published its largest set of scientific results to date.
Read article 'Hubble expansion discrepancy deepens'
Hubble expansion discrepancy deepens
Adam Riess from the Space Telescope Science Institute and colleagues have now made a more precise, direct measurement that reinforces the mismatch and could signal new physics.
