NASA Astrobiology Institute

Carl Pilcher Returns to NAI as Interim Director

Carl Pilcher Returns to NAI as Interim Director

The NASA Astrobiology Institute (NAI) welcomes back Dr. Carl B. Pilcher as NAI Interim Director.

Habitable Zones & Global Climate

First Evidence for Water Ice Clouds Outside Our Solar System

First Evidence for Water Ice Clouds Outside Our Solar System Video in Story

A team of scientists led by Carnegie's Jacqueline Faherty has discovered the first evidence of water ice clouds on an object outside of our own Solar System.

Extrasolar Planets

Effects of XUV Radiation on Circumbinary Planets

Effects of XUV Radiation on Circumbinary Planets

Several circumbinary planets have recently been discovered. The orbit of a planet around a binary stellar system poses several dynamic constraints.

Habitable Zones & Global Climate

Effects of Stellar Winds on the Magnetospheres and Potential Habitability of Exoplanets

Effects of Stellar Winds on the Magnetospheres and Potential Habitability of Exoplanets

The principle definition of habitability for exoplanets is whether they can sustain liquid water on their surfaces, i.e. that they orbit within the habitable zone.

Origin & Evolution of Life

Oxygen-producing Life A ppeared at Least 60 Million Years Earlier Than Previously Thought

Oxygen-producing Life A ppeared at Least 60 Million Years Earlier Than Previously Thought

Geologists from Trinity College Dublin have rewritten the evolutionary history books by finding that oxygen-producing life forms were present on Earth some 3 billion years ago - a full 60 million years earlier than previously thought.

Habitable Zones & Global Climate

Geology and Photometric Variation of Solar System Bodies with Minor Atmospheres: Implications for Solid Exoplanets

Geology and Photometric Variation of Solar System Bodies with Minor Atmospheres: Implications for Solid Exoplanets

A reasonable basis for future astronomical investigations of exoplanets lies in our best knowledge of the planets and satellites in the Solar System.

Extrasolar Planets

Searching for Habitable Super-Earth Exoplanets Around Nearby M-dwarfs

Searching for Habitable Super-Earth Exoplanets Around Nearby M-dwarfs

Detection and characterization of potentially habitable Earth-size extrasolar planets is one of the major goals of contemporary astronomy.

Astrochemistry

Reconstructing the Cosmic Evolution of the Chemical Elements

Reconstructing the Cosmic Evolution of the Chemical Elements

The chemical elements are created in nuclear fusion processes in the hot and dense cores of stars. The energy generated through nucleosynthesis allows stars to shine for billions of years.

Extrasolar Planets

Stability of the Kepler-11 System and its Origin

Stability of the Kepler-11 System and its Origin

A significant fraction of Kepler systems are closely-packed, largely coplanar and circular. We study the stability of a 6-planet system, Kepler-11, to gain insights on the dynamics and formation history of such systems.

Extrasolar Planets

Disentangling Planets and Stellar Activity for Gliese 667C

Disentangling Planets and Stellar Activity for Gliese 667C

Gliese 667C is an M1.5V star with a multi-planet system, including planet candidates in the habitable zone (HZ).

SETI

SETI, Astrobiology Pioneer Jill Tarter Awarded Jansky Lectureship

SETI, Astrobiology Pioneer Jill Tarter Awarded Jansky Lectureship

Associated Universities, Inc. (AUI), and the National Radio Astronomy Observatory (NRAO) have awarded the 2014 Karl G. Jansky Lectureship to Dr. Jill C. Tarter, of the SETI Institute. The Jansky Lectureship is an honor established by the trustees of AUI to recognize outstanding contributions to the advancement of radio astronomy.

More top stories from September.