Oceanic Research

Modern Microbial Ecosystems Provide Window to Early Life on Earth

Modern Microbial Ecosystems Provide Window to Early Life on Earth

New research from a University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science-led science team provides new insight into one of the world's most diverse and extensive ecosystems of living microbes.

Astrochemistry

Dust and Polycyclic Aromatic Hydrocarbon in the Pre-Transitional Disk around HD 169142

Dust and Polycyclic Aromatic Hydrocarbon in the Pre-Transitional Disk around HD 169142

The pre-transitional disk around the Herbig Ae star HD 169142 shows a complex structure of possible ongoing planet formation in dust thermal emission from the near infrared (IR) to millimeter wavelength range.

Extrasolar Planets

Evolved Stars and the Origin of Abundance Trends in Planet Hosts

Evolved Stars and the Origin of Abundance Trends in Planet Hosts

Tentative evidence that the properties of evolved stars with planets may be different from what we know for MS hosts has been recently reported.

International Space Station

Spacewalk Marks End of ESA's Exposed Space Chemistry Experiment

Spacewalk Marks End of ESA's Exposed Space Chemistry Experiment

ESA's Expose facility was retrieved today from outside the International Space Station by cosmonauts Yuri Malenchenko and Sergei Volkov, who were completing a spacewalk to place new experiments on the outpost's hull.

Astrochemistry

How Terrestrial Life's Building Blocks May Have First Formed

How Terrestrial Life's Building Blocks May Have First Formed

How did life begin? This is one of the most fundamental questions scientists puzzle over. To address it, they have to look not just back to the primordial Earth, but out into space.

Habitable Zones & Global Climate

Terrestrial Planets Across Space and Time

Terrestrial Planets Across Space and Time

The study of cosmology, galaxy formation and exoplanetary systems has now advanced to a stage where a cosmic inventory of terrestrial planets may be attempted.

Astronomy

A Search for Brief Optical Flashes Associated with the SETI Target KIC 846285

A Search for Brief Optical Flashes Associated with the SETI Target KIC 846285

The F-type star KIC~8462852 has recently been identified as an exceptional target for SETI (search for extraterrestrial intelligence) observations.

Extrasolar Planets

Evolution of Stellar Rotation and Hydrogen Atmospheres of Habitable-zone Terrestrial Planets

Evolution of Stellar Rotation and Hydrogen Atmospheres of Habitable-zone Terrestrial Planets

Terrestrial planets formed within gaseous protoplanetary disks can accumulate significant hydrogen envelopes.

Extrasolar Planets

Detailed Chemical Composition of Terrestrial Planet Host Kepler-10

Detailed Chemical Composition of Terrestrial Planet Host Kepler-10

Chemical abundance studies of the Sun and solar twins have demonstrated that the solar composition of refractory elements is depleted when compared to volatile elements, which could be due to the formation of terrestrial planets.

Astrochemistry

Water and Acetaldehyde in HH212: The First Hot Corino in Orion

Water and Acetaldehyde in HH212: The First Hot Corino in Orion

Aims: Using the unprecedented combination of high resolution and sensitivity offered by ALMA, we aim to investigate whether and how hot corinos, circumstellar disks, and ejected gas are related in young solar-mass protostars.

SETI

Globular Clusters as Cradles of Life and Advanced Civilizations

Globular Clusters as Cradles of Life and Advanced Civilizations

Globular clusters are ancient stellar populations with no star formation or core-collapse supernovae. Several lines of evidence suggest that globular clusters are rich in planets.

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