04 May 2020
Exoplanets with hydrogen-rich atmospheres could harbour life
...As such it tends to be hot giant exoplanet atmospheres that are studied more readily. So far, a number of gases such as sodium (Na), potassium (K), carbon monoxide (CO), water (H2O), methane (CH4), and titanium oxide (TiO) have been identified in the...
15 June 2020
Green dayglow detected at Mars for the first time
... then later reformed. Atmospheric scientists frequently observe emissions from hydroxyl (OH) and oxygen (O2) molecules and from sodium (Na) and oxygen (O) atoms in Earth’s skies and it is this latter atom, oxygen, that gives terrestrial auroras...
12 February 2021
Water vapour spotted escaping from Mars' atmosphere
... up salts left over from evaporated oceans, are being lifted into the martian atmosphere by winds. The sodium chloride dust then reacts with molecules containing hydrogen to create hydrogen chloride. "You need water vapour...
