Mars

Mars 2020 Will Hunt for Microscopic Fossils

Mars 2020 Will Hunt for Microscopic Fossils

Scientists with NASA's Mars 2020 rover have discovered what may be one of the best places to look for signs of ancient life in Jezero Crater, where the rover will land on Feb. 18, 2021.

Extrasolar Planets

The Compositional Diversity of Low-Mass Exoplanets

The Compositional Diversity of Low-Mass Exoplanets

Low-mass planets have an extraordinarily diverse range of bulk compositions, from primarily rocky worlds to those with deep gaseous atmospheres.

Mars

Curiosity Observes Oxygen At Gale Crater

Curiosity Observes Oxygen At Gale Crater

For the first time in the history of space exploration, scientists have measured the seasonal changes in the gases that fill the air directly above the surface of Gale Crater on Mars.

Mars

 At Future Mars Landing Spot, Mineral Could Preserve Signs of Ancient Life

At Future Mars Landing Spot, Mineral Could Preserve Signs of Ancient Life

Next year, NASA plans to launch a new Mars rover to search for signs of ancient life on the Red Planet.

Habitable Zones & Global Climate

Study Refines Which Exoplanets Are Potentially Habitable

Study Refines Which Exoplanets Are Potentially Habitable

In order to search for life in outer space, astronomers first need to know where to look. A new Northwestern University study will help astronomers narrow down the search.

Extrasolar Planets

Multilayer Perceptron and Geometric Albedo Spectra for Quick Parameter Estimations of Exoplanets

Multilayer Perceptron and Geometric Albedo Spectra for Quick Parameter Estimations of Exoplanets

Future space telescopes now in the concept and design stage aim to observe reflected light spectra of extrasolar planets.

Space Weather

Frequency of Coronal Mass Ejection Impacts with Early Terrestrial Planets and Exoplanets Around Active Solar-like Stars

Frequency of Coronal Mass Ejection Impacts with Early Terrestrial Planets and Exoplanets Around Active Solar-like Stars

Energetic flares and associated coronal mass ejections (CMEs) from young magnetically active solar-like stars can play a critical role in setting conditions for atmospheric escape as well aspenetration of accelerated particles into their atmospheres that promotes formation of biologically relevant molecules.

Habitable Zones & Global Climate

Characterizing Exoplanet Habitability

Characterizing Exoplanet Habitability

Habitability is a measure of an environment's potential to support life, and a habitable exoplanet supports liquid water on its surface.

Dale Andersen's Field Reports

Astrobiologist Dale Andersen Antarctic Status Report 11 November 2019: Melting A Dive Hole

Astrobiologist Dale Andersen Antarctic Status Report 11 November 2019: Melting A Dive Hole

We have had pretty good weather since we arrived at Untersee and have kept pretty busy getting the camp pulled together and starting up the science ops.

Genomics and Cell Biology

DNA Is Only One Among Millions Of Possible Genetic Molecules

DNA Is Only One Among Millions Of Possible Genetic Molecules

Biology encodes information in DNA and RNA, which are complex molecules finely tuned to their functions. But are they the only way to store hereditary molecular information?

Habitable Zones & Global Climate

Habitable Zone Boundaries for Circumbinary Planets

Habitable Zone Boundaries for Circumbinary Planets

We use a one-dimensional (1-D) cloud-free climate model to estimate habitable zone (HZ) boundaries for terrestrial planets of masses 0.1 ME and 5 ME around circumbinary stars of various spectral type combinations.

More top stories from November.