28 December 2016
Discrepancies in data suggest less dark matter now than after the big bang
.... "Let us imagine that dark matter consists of several components, as in ordinary matter (protons, electrons, neutrons, neutrinos, photons). And one component consists of unstable particles with a rather long lifespan: in the era of the formation...
08 March 2017
The most distant galaxy yet observed by ALMA gives insight into first stars
... millimeter and submillimeter range of the electromagnetic spectrum, which is the wavelength that dust molecules emit their photons in, therefore the observatory is perfectly suited to help study the era when the first stars and galaxies...
01 September 2017
TRAPPIST-1 planets could contain substantial amounts of water
... starlight can break water vapour in the atmospheres of exoplanets into hydrogen and oxygen.” This happens when photons of a certain energy break the bonds of molecules into their constituent atoms. This is a process known as photodissociation and...
20 September 2017
A new way to 'weigh' extragalactic black holes
... in. As this material is accreted onto the black hole it can reach a temperature of around 105 K whilst emitting energetic photons at optical, ultraviolet, and X-ray wavelengths. These X-ray sources have been mistaken in the past for fast...
24 January 2018
Scientists uncover common origin for ultrahigh-energy particles
... Space Telescope and other ground-based observatories to have energies more than a billion times higher than a photon of visible light. Neutrinos on the other hand are mysterious, neutral subatomic particles that rarely interacts with...
18 April 2018
Ambitious Galactic survey to help find Sun's lost family
... at specific wavelengths. Collecting light from each star is very time consuming – it takes about an hour to collect enough photons of light for each star in order to scrutinise its spectra. Luckily the Anglo-Australian Telescope (AAT) at the...
