Evidence of a buildup of atmospheric oxygen first appears in rock layers 2,200-1,900 million years old, during which time most of the planet's exposed surface rusts. By 1,900 mya, oxygen composes ...

Ancient eruptions may have triggered conditions for oxygen ‘whiffs’ in the atmosphere In a nutshell Massive volcanic events known as Large Igneous Provinces (LIPs) likely released carbon dioxide, ...

Using Webb’s near-infrared spectrograph, astronomers have captured new images of Neptune that finally reveal the planet’s ...

Led by Curtin University geologists Chris Kirkland and Tim Johnson, a research team unearthed this primeval crater beneath ...

Scientists cannot be sure about the composition of the early atmosphere. No measurements can be made, so scientists must analyse indirect evidence from other sources. Type of Evidence What it ...

In 2022, the Webb telescope detected unequivocal evidence of carbon dioxide in the atmosphere of a distant exoplanet called WASP-39b. But that detection was made indirectly, so the latest ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

Scientists cannot be sure about the composition of the early atmosphere. No measurements can be made, so scientists must analyse indirect evidence from other sources. Type of Evidence What it ...

Evidence of climate change is all around us ... resulting from increased levels of greenhouse gases in the atmosphere (i.e., the “greenhouse effect”; IPCC 2007; Figure 1).

The ice-giant planet Uranus, which travels around the sun tipped on its side, is a weird and mysterious world. Now, in an ...

The potential discovery of dimethyl sulfide (DMS) in the atmosphere of the exoplanet K2-18b has sparked a heated debate among astronomers. Could this molecule, often associated with life on ...