Astronomy

Future Astrometric Space Missions for Exoplanet Science

Future Astrometric Space Missions for Exoplanet Science

High-precision astrometry at the sub-microarcsecond level opens up a window to study Earth-like planets in the habitable zones of Sun-like stars, and to determine their masses.

Astrochemistry

Influence of Surface and Bulk Water Ice on the Reactivity of a Water-forming Reaction

Influence of Surface and Bulk Water Ice on the Reactivity of a Water-forming Reaction

On the surface of icy dust grains in the dense regions of the interstellar medium a rich chemistry can take place.

Extrasolar Planets

A Glimpse of Habitability When The Ozone Layer first Formed on Earth

A Glimpse of Habitability When The Ozone Layer first Formed on Earth

Kepler-96 is an active solar-type star harbouring a Super-Earth planet in close orbit. Its age of 2.3 Gyr is the same as the Sun when there was a considerable increase of oxygen in Earth's atmosphere due to micro-organisms living under the sea.

Tricorder

A Real Tricorder

A Real Tricorder

Researchers at the University of Illinois at Urbana-Champaign have developed technology that enables a smartphone to perform lab-grade medical diagnostic tests that typically require large, expensive instruments.

Astrochemistry

The Spatial Distribution of Carbon Dust in the Early Solar Nebula and the Carbon Content of Planetesimals

The Spatial Distribution of Carbon Dust in the Early Solar Nebula and the Carbon Content of Planetesimals

A high fraction of carbon bound in solid carbonaceous material is observed to exist in bodies formed in the cold outskirts of the solar nebula, while bodies in the terrestrial planets region contain nearly none.

Alpha Centauri

Searching for Faint Comoving Companions To The α Centauri System In The VVV Survey Infrared Images

Searching for Faint Comoving Companions To The α Centauri System In The VVV Survey Infrared Images

The VVV survey has observed the southern disk of the Milky Way in the near infrared, covering 240 deg2 in the ZYJHKS filters.

Astrochemistry

Formamide in Protostellar Shocks: Evidence for Gas-phase Formation

Formamide in Protostellar Shocks: Evidence for Gas-phase Formation

Context: Modern versions of the Miller-Urey experiment claim that formamide (NH2CHO) could be the starting point for the formation of metabolic and genetic macromolecules.

Extrasolar Planets

Rotational Spectral Unmixing of Exoplanets: Degeneracies between Surface Colors and Geography

Rotational Spectral Unmixing of Exoplanets: Degeneracies between Surface Colors and Geography

Unmixing the disk-integrated spectra of exoplanets provides a clue to heterogeneous surfaces that we cannot directly resolve in the foreseeable future.

Extrasolar Planets

Astrophysicists Predict Earth-like Planet in Star System 16 Light Years Away

Astrophysicists Predict Earth-like Planet in Star System 16 Light Years Away

Astrophysicists at the University of Texas at Arlington have predicted that an Earth-like planet may be lurking in a star system just 16 light years away.

tau Ceti

Four Earth-sized Planets Detected Orbiting tau Ceti

Four Earth-sized Planets Detected Orbiting tau Ceti

A new study by an international team of astronomers reveals that four Earth-sized planets orbit the nearest sun-like star, tau Ceti, which is about 12 light years away and visible to the naked eye.

TRAPPIST-1

TRAPPIST-1 is Older Than Our Solar System

TRAPPIST-1 is Older Than Our Solar System

If we want to know more about whether life could survive on a planet outside our solar system, it's important to know the age of its star.

More top stories from August.