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Earth's atmosphere had terrifying mercury pollution even before the killer asteroid
Even before the Chicxulub asteroid hit Earth 66 million years ago, dinosaurs and other life forms were dealing with toxic mercury levels, a new study suggests.
China's Tiangong-2 space lab to reenter atmosphere under control
China's Tiangong-2 space lab is planned to be controlled to leave orbit and reenter the atmosphere on July 19, China Manned Space Engineering Office (CMSEO) announced on Saturday.
Bayern earning draw amid Anfield atmosphere hardly a nightmare for Liverpool
There are times when people get carried away with the emotion of a European night at Anfield. The noise, the color, the fear that makes world-class opposition players freeze in their tracks; all those elements helped drive Liverpool to the Champions League final last season, but Bayern Munich debunked some myths as it secured a 0-0 round-of-16 first-leg draw on Tuesday.
UN says level of greenhouse gases hit new high
The levels of greenhouse gases in the atmosphere, the main driver of climate change, have hit a new record high, the UN says, warning that the time to act was running out.
Last year’s solar eclipse set off a wave in the upper atmosphere
It was the eclipse felt ‘round the world. The August 21, 2017, total solar eclipse that crossed the United States launched a wave in the upper atmosphere that was detected nearly an hour later from Brazil (SN Online: 8/11/17).
Mountain erosion may add CO₂ to the atmosphere
Scientists have long known that steep mountain ranges can draw carbon dioxide (CO₂) out of the atmosphere — as erosion exposes new rock, it also starts a chemical reaction between minerals on hill slopes and CO₂ in the air, ‘weathering’ the rock and using CO₂ to produce carbonate minerals like calcite.
Hubble observes exoplanet atmosphere in more detail than ever before
An international team of scientists has used the NASA/ESA Hubble Space Telescope to study the atmosphere of the hot exoplanet WASP-39b.
Leaky atmosphere linked to lightweight planet
The Red Planet's low gravity and lack of magnetic field makes its outermost atmosphere an easy target to be swept away by the solar wind, but new evidence from ESA's Mars Express spacecraft shows that the Sun's radiation may play a surprising role in its escape.
Oxygen accumulated in Earth's primordial oceans 250m years before the atmosphere
Oxygen began accumulating in early Earth's oceans some 250 million years before it first showed up in the atmosphere some 2.45 billion years ago.
UN: Concentration of CO2 in atmosphere hits record high
The concentration of carbon dioxide (CO2) in the atmosphere has hit a new high, the UN said Monday, warning that drastic action is needed to achieve targets set by the Paris climate agreement.
Mars had a dense atmosphere four billion years ago
Exploration missions have suggested that Mars once had a warm climate, which sustained oceans on its surface.
Astronomers found an alien world with glowing water atmosphere
Scientists have discovered evidence of a stratosphere surrounding a large exoplanet located 900 light-years from Earth.
Venus's turbulent atmosphere
Venus is often referred to as Earth's twin because both planets share a similar size and surface composition.

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