In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere surrounding an Earth-like, rocky planet orbiting within the habitable zone of ...

Hydrogen can react with other chemicals, and both it and helium can be lost to space. Venus, Earth, and Mars are thought to have second atmospheres, with their original hydrogen/helium envelopes ...

The Daily Atmospheric Ionospheric Limb Imager (DAILI) CubeSat successfully launched aboard the SpaceX Falcon 9 rocket at 5:07 a.m. EST on Dec. 21, 2021 from Launch Complex 39A at NASA’s Kennedy Space ...

In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere surrounding an Earth-like, rocky planet orbiting within the habitable zone of ...

For decades, astronomers hunting for life on other worlds faced a maddening gap in the evidence: they could find rocky planets positioned at the right distance from their stars, but they could not ...

The Earth’s atmosphere is a dynamic blend of uniform gases—primarily N₂ and O₂—and variable constituents including water vapour, CO₂, CH₄ and trace species such as O₃. These components undergo a web ...

Levels of hydrogen in the atmosphere have jumped by 60 per cent since pre-industrial times, underscoring the dramatic impact fossil fuel burning has had on the planet’s atmospheric composition.

London’s famous smogs were nothing compared with the thick haze that enveloped Earth 2.5 billion years ago. The atmosphere at the time was rich in hydrocarbons, similar to that of Saturn’s moon, Titan ...