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Astronomy Jan 25, 2024

Hubble finds water vapor in small exoplanet's atmosphere

Astronomers using the NASA/ESA Hubble Space Telescope observed the smallest exoplanet where water vapor has been detected in its atmosphere. At only approximately twice Earth's diameter, the planet GJ 9827d could be an example ...

Space Exploration Jan 24, 2024

NASA invests in new nuclear rocket concept for the future of space exploration and astrophysics

In the coming years, NASA plans to send several astrobiology missions to Venus and Mars to search for evidence of extraterrestrial life. These will occur alongside crewed missions to the moon (for the first time since the ...

Astrobiology Jan 23, 2024

Life on Earth uses water as a solvent. What are some other options for life as we don't know it?

There is a vast menagerie of potentially habitable worlds in the cosmos, which means the universe could be home to a diversity of life beyond what we can imagine. Creatures built on silicon rather than carbon, or organisms ...

Space Exploration Jan 18, 2024

NASA selects a sample return mission to Venus

In Dante Alighieri's epic poem The Divine Comedy, the famous words "Abandon all hope, ye who enter here" adorn the gates of hell. Interestingly enough, Dante's vision of hell is an apt description of what conditions are like ...

Astrobiology Jan 12, 2024

Venus' atmospheric chemical anomalies may motivate future astrobiology missions

When scientists detected phosphine in Venus' atmosphere in 2020, it triggered renewed, animated discussions about Venus and its potential habitability. It would be weird if the detection didn't generate interest since phosphine ...

Astrobiology Jan 9, 2024

New study suggests some forms of life could exist in Venus's sulfuric acid clouds

A team of chemists and planetary scientists from Worcester Polytechnic Institute, Nanoplanet Consulting and MIT has found evidence that a form of life that uses sulfuric acid as a liquid medium could exist in some of the ...

Space Exploration Jan 8, 2024

Should we send humans to Pluto?

Universe Today has examined the potential for sending humans to Jupiter's icy moon, Europa, the planet Venus, and Saturn's largest moon, Titan, all despite their respective harsh environments and vast distances. These conversations ...

Cell & Microbiology Jan 8, 2024

Researchers discover important membrane transport mechanism in pathogenic bacteria

Some bacterial membrane transporters work almost like freight elevators to transport substances through the cell membrane into the interior of the cell. The transporter itself spans the bacterial membrane. Like a forklift, ...

Space Exploration Jan 5, 2024

Mysterious missing component in the clouds of Venus revealed

What are the clouds of Venus made of? Scientists know it's mainly made of sulfuric acid droplets, with some water, chlorine, and iron. Their concentrations vary with height in the thick and hostile Venusian atmosphere. But ...

Planetary Sciences Jan 2, 2024

TRAPPIST-1c isn't the exo-Venus we were hoping for, but don't blame the star

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 ...

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