Biosignatures & Paleobiology
Lake Bed Reveals Details About Ancient Earth 
Sleuthing by a Rice University postdoctoral fellow is part of a new Nature paper that gives credence to theories about Earth's atmosphere 1.4 billion years ago.
Oceanic Research
Origami-Inspired Device Helps Marine Biologists Study Aliens
Scientists have tried to find the safest and most effective ways to explore marine life in the oceanic water, the largest and least explored environment on Earth, for years.
Habitable Zones & Global Climate
Evolution of Earth-like Extrasolar Planetary Atmospheres
Understanding the evolution of Earth and potentially habitable Earth-like worlds is essential to fathom our origin in the Universe.
Extrasolar Planets
Atmospheric Circulation and Thermal Phase-Curve Offset of Tidally and Non-Tidally Locked Terrestrial Exoplanets
Using an idealised general circulation model, we investigate the atmospheric circulation of Earth-like terrestrial planets in a variety of orbital configurations.
Habitable Zones & Global Climate
The Inner Solar System's Habitability Through Time
Earth, Mars, and Venus, irradiated by an evolving Sun, have had fascinating but diverging histories of habitability. Although only Earth's surface is considered to be habitable today, all three planets might have simultaneously been habitable early in their histories.
Extrasolar Planets
Exoplanet Atmosphere Measurements From Direct Imaging
In the last decade, about a dozen giant exoplanets have been directly imaged in the IR as companions to young stars.
Habitable Zones & Global Climate
Photosynthesis on a Planet Orbiting an M Dwarf: Enhanced Effectiveness During Flares
On planets near M dwarfs, photosynthesis (PS) will occur with an effectiveness which depends on the supply of visible photons with wavelengths between 400 and 700 nm. In this paper, we quantify the effectiveness of PS in two contexts which are relevant for M dwarfs.
Biosignatures & Paleobiology
Scientists Discover Earth's Youngest Banded Iron Formation In Western China
The banded iron formation, located in western China, has been conclusively dated as Cambrian in age. Approximately 527 million years old, this formation is young by comparison to the majority of discoveries to date.
Extrasolar Planets
Rocky Planet Ross 128 b Is Not Earth's Twin
Last autumn, the world was excited by the discovery of an exoplanet called Ross 128 b, which is just 11 light-years away from Earth.
Habitable Zones & Global Climate
Oxygen Levels on Early Earth Rose And Fell Several Times
Earth's oxygen levels rose and fell more than once hundreds of millions of years before the planetwide success of the Great Oxidation Event about 2.4 billion years ago, new research from the University of Washington shows.
Astrogeology
Mineralogy, Structure and Habitability of Carbon-enriched Rocky Exoplanets: A Laboratory Approach
Carbon-enriched rocky exoplanets have been proposed around dwarf stars as well as around binary stars, white dwarfs and pulsars. However, the mineralogical make up of such planets is poorly constrained.
More top stories from July.
Recent Releases
Recent Status Reports
Calendar
- 19 Jul: Greater Security Through International Space Collaboration
- 22 Jul: Robotic Telescopes, Student Research and Education (RTSRE) and InterNational Astronomy Teaching Summit (iNATS)
- 23 Jul: ISS R&D Conference
- 23 Jul: NASA Astrophysics Advisory Committee Meeting
- 23 Jul: Celebrating NASA’s 60th Anniversary with Administrator Jim Bridenstine
- 25 Jul: Full Committee Hearing - James Webb Space Telescope: Program Breach and its Implications - Panel 1
- 26 Jul: Aerospace Safety Advisory Panel Meeting
- 26 Jul: Full Committee Hearing - James Webb Space Telescope: Program Breach and its Implications - Panel 2
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