It's a scenario made famous by the 1998 film "Armageddon": an asteroid is spotted on a collision course with Earth, and experts scramble to plan a space mission to rendezvous with the asteroid and mitigate the danger. It's ...
Planetary Sciences
Feb 8, 2024
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17
Plants both absorb carbon dioxide and release water vapor through their stomata, or pores on their leaves. In drought conditions, plants close these pores to conserve water, and this reduces their carbon dioxide uptake as ...
Earth Sciences
Feb 6, 2024
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7
The GRAPES-3 experiment in Ooty, India, operated by the Tata Institute of Fundamental Research has discovered a new feature in the cosmic-ray proton spectrum at about 166 tera-electron-volt (TeV) energy while measuring the ...
Astronomy
Feb 2, 2024
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251
The next generation of advanced telescopes could sharpen the hunt for potential extraterrestrial life by closely scrutinizing the atmospheres of nearby exoplanets, new research suggests.
Astrobiology
Jan 29, 2024
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343
We know of Mars as the red planet, for its surface and atmosphere is caked in endless swirling dust of rusted iron, the rusting action provided by the always-eager oxygen. But this was not always so.
Astrobiology
Jan 24, 2024
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36
The source and amounts of different types of mineral dust reaching the Earth's atmosphere needs to be re-evaluated so its effects on human health and climate change can be more accurately understood, scientists claim.
Earth Sciences
Jan 18, 2024
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9
A recent study posted to the arXiv preprint server and accepted to The Astrophysical Journal uses computer models to investigate why the exoplanet, TRAPPIST-1c, could not possess a thick carbon dioxide (CO2) atmosphere despite ...
Planetary Sciences
Jan 2, 2024
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31
Scientists at MIT, the University of Birmingham, and elsewhere say that astronomers' best chance of finding liquid water, and even life on other planets, is to look for the absence, rather than the presence, of a chemical ...
Astronomy
Dec 29, 2023
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235
As astronomers have begun to gather data on the atmospheres of planets, we're learning about their compositions and evolution. Thick atmospheres are the easiest to study, but these same thick atmospheres can hide the surface ...
Planetary Sciences
Dec 27, 2023
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42
The year's best meteor shower, the Geminids, peaks this week. Skygazers may see as many as one or even two a minute streaking across dark skies.
Space Exploration
Dec 13, 2023
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