TRAPPIST-1

Powerful Particles And Tugging Tides May Affect Extraterrestrial Life

Powerful Particles And Tugging Tides May Affect Extraterrestrial Life

Since its discovery in 2016, planetary scientists have been excited about TRAPPIST-1, a system where seven Earth-sized rocky planets orbit a cool star.

Astrogeology

Linking The Evolution of Terrestrial Interiors And An Early Outgassed Atmosphere to Astrophysical Observations

Linking The Evolution of Terrestrial Interiors And An Early Outgassed Atmosphere to Astrophysical Observations

A terrestrial planet is molten during formation and may remain so if subject to intense insolation or tidal forces. Observations continue to favour the detection and characterisation of hot planets, potentially with large outgassed atmospheres.

Astrochemistry

Isocyanogen Formation In The Cold Interstellar Medium

Isocyanogen Formation In The Cold Interstellar Medium

Cyanogen (NCCN) is the simplest member of the dicyanopolyynes group, and has been proposed as a major source of the CN radical observed in cometary atmospheres. Although not detected through its rotational spectrum in the cold interstellar medium, this very stable species is supposed to be very abundant.

Extinction events

New Evidence Suggests Volcanoes Caused Biggest Mass Extinction Ever

New Evidence Suggests Volcanoes Caused Biggest Mass Extinction Ever

Researchers say mercury buried in ancient rock provides the strongest evidence yet that volcanoes caused the biggest mass extinction in the history of the Earth.

Mars

Martian Cloud Climatology and Life Cycle Extracted From Mars Express OMEGA Spectral Images

Martian Cloud Climatology and Life Cycle Extracted From Mars Express OMEGA Spectral Images

A Martian water-ice cloud climatology has been extracted from OMEGA data covering 7 Martian years (MY 26-32).

Proxima Centauri b

Observation of a Possible Superflare on Proxima Centauri

Observation of a Possible Superflare on Proxima Centauri

We report the observation on UT 2017.07.01 of an unusually powerful flare detected in near-infrared continuum photometry of Proxima Centauri.

Moons and Icy Worlds

Dispersion Forces Stabilise Ice Coatings at Certain Gas Hydrate Interfaces Which Prevent Water Wetting

Dispersion Forces Stabilise Ice Coatings at Certain Gas Hydrate Interfaces Which Prevent Water Wetting

Gas hydrates formed in oceans and permafrost occur in vast quantities on Earth representing both a massive potential fuel source and a large threat in climate forecasts. They have been predicted to be important on other bodies in our solar systems such as Enceladus, a moon of Saturn.

Origin & Evolution of Life

Earliest Earth Life May Have Arisen In Ponds, Not Oceans

Earliest Earth Life May Have Arisen In Ponds, Not Oceans

Primitive ponds may have provided a suitable environment for brewing up Earth's first life forms, more so than oceans, a new MIT study finds.

Extremeophiles and Extreme Environments

Unique Oil-eating Bacteria Found In Earth's Deepest Ocean Trench

Unique Oil-eating Bacteria Found In Earth's Deepest Ocean Trench

Scientists from the University of East Anglia have discovered a unique oil eating bacteria in the deepest part of the Earth's oceans - the Mariana Trench.

Biosignatures & Paleobiology

Tracking Records Of The Oldest Life Forms On Earth

Tracking Records Of The Oldest Life Forms On Earth

The discovery provides a new characteristic 'biosignature' to track the remains of ancient life preserved in rocks which are significantly altered over billions of years and could help identify life elsewhere in the Solar System.

Astrobiology (general)

2019 Breakthrough Discuss Conference: Migration of Life in the Universe

2019 Breakthrough Discuss Conference: Migration of Life in the Universe

The 2019 Breakthrough Discuss Conference: "Migration of Life in the Universe" is being held on 11-12 April. A live webcast starts at 8:00 am PDT/11:00 am EDT at http://www.youtube.com/breakthroughprize. Details on the event can be found here. Live tweeting will be done at @Astrobiology

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