Titan

The First Global Geologic Map of Titan Completed

The First Global Geologic Map of Titan Completed

The first map showing the global geology of Saturn's largest moon, Titan, has been completed and fully reveals a dynamic world of dunes, lakes, plains, craters and other terrains.

Genomics and Cell Biology

X-ray Free-Electron Laser Imaging Of Enzymes

X-ray Free-Electron Laser Imaging Of Enzymes

To study the swiftness of biology - the protein chemistry behind every life function - scientists need to see molecules changing and interacting in unimaginably rapid time increments - trillionths of a second or shorter.

Astrochemistry

Multiple Nitrogen Reservoirs In A Protoplanetary Disk At The Epoch Of Comet And Giant Planet Formation

Multiple Nitrogen Reservoirs In A Protoplanetary Disk At The Epoch Of Comet And Giant Planet Formation

The isotopic ratio of nitrogen measured in primitive Solar System bodies shows a broad range of values, the origin of which remains unknown.

Mars

Mars Scientists Investigate Ancient Life in Australia

Mars Scientists Investigate Ancient Life in Australia

As any geologist worth his or her salt will tell you, there are rocks, and then there are rocks. Next July, NASA and the European Space Agency (ESA) are launching rovers to Mars that will search for signs of past microbial life, and to find them, the scientists with NASA's Mars 2020 mission and ESA's ExoMars will need to examine different kinds of rocks that lend compelling insights into the environment in which they were made -- all from 100 million miles away.

Origin & Evolution of Life

Lifelike Chemistry Created In Lab Search For Ways To Study Origin Of Life

Lifelike Chemistry Created In Lab Search For Ways To Study Origin Of Life

University of Wisconsin-Madison researchers have cultivated lifelike chemical reactions while pioneering a new strategy for studying the origin of life.

Genomics and Cell Biology

Chemists Map An Artificial Molecular Self-assembly Pathway With Complexities Of Life

Chemists Map An Artificial Molecular Self-assembly Pathway With Complexities Of Life

Two pathways diverged in a chemical synthesis, and one molecule took them both. Chemists at the University of Tokyo have studied how molecular building blocks can either form a spherical cage or an ultrathin sheet that shows some of the basic properties of a "smart" material that can respond to its environment.

Habitable Zones & Global Climate

Habitability and Spectroscopic Observability of Warm M-dwarf Exoplanets Evaluated with a 3D Chemistry-Climate Model

Habitability and Spectroscopic Observability of Warm M-dwarf Exoplanets Evaluated with a 3D Chemistry-Climate Model

Planets residing in circumstellar habitable zones (CHZs) offer our best opportunities to test hypotheses of life's potential pervasiveness and complexity.

Astrochemistry

Mysteries Behind Interstellar Buckyballs Finally Answered

Mysteries Behind Interstellar Buckyballs Finally Answered

Scientists have long been puzzled by the existence of so-called "buckyballs" -- complex carbon molecules with a soccer-ball-like structure -- throughout interstellar space.

NASA Astrobiology Institute

Celebrating the NASA Astrobiology Institute At 20

Celebrating the NASA Astrobiology Institute At 20

Join us on November 14, 2019 8:30AM - 5:00PM PST to celebrate the NASA Astrobiology Institute (NAI) at 20. As the NAI completes its 20-year tenure, we remember the origin of astrobiology, the impact of the NAI to the field of astrobiology, share the current development of the field, and discuss the future direction of astrobiology at NASA, the Ames Research Center, and the broader community.

Venus

Chemically-distinct Regions Within Venus' Atmosphere Revealed by MESSENGER-measured N2 Concentrations

Chemically-distinct Regions Within Venus' Atmosphere Revealed by MESSENGER-measured N2 Concentrations

A defining characteristic of the planet Venus is its thick, CO2-dominated atmosphere. Despite over fifty years of robotic exploration, including thirteen successful atmosphere probes and landers, our knowledge of N2, the second-most-abundant compound in the atmosphere, is highly uncertain (von Zahn et al., 1983).

Habitable Zones & Global Climate

How to Characterize Habitable Worlds and Signs of Life

How to Characterize Habitable Worlds and Signs of Life

The detection of exoplanets orbiting other stars has revolutionized our view of the cosmos. First results suggest that it is teeming with a fascinating diversity of rocky planets, including those in the habitable zone.

More top stories from November.