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Astronomy

Cassini Prepares to Say Goodbye to a True Titan

Two Titans These two views of Saturn’s moon Titan exemplify how NASA’s Cassini spacecraft has revealed the surface of this fascinating world. Cassini carried several instruments to pierce the veil of hydrocarbon haze that enshrouds Titan. These include the spacecraft’s …

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TRAPPIST-1 is Older Than Our Solar System

TRAPPIST-1 System – Artist Concept This illustration shows what the TRAPPIST-1 system might look like from a vantage point near planet TRAPPIST-1f (at right). The system has been revealed through observations from NASA’s Spitzer Space Telescope and the ground-based TRAPPIST …

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Why massive galaxies don’t dance in crowds

Galaxy cluster Abell 2744, imaged with the Hubble Space Telescope. The cluster lies in the constellation of Sculptor and contains several hundred galaxies. Credit: NASA, ESA, and R. Dupke (Eureka Scientific, Inc.), et al.   Why massive galaxies don’t dance …

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Search for life on Mars could target meteorites

A stony meteorite from South Australia’s Nullarbor Plain, discovered this year during an annual Monash University meteorite recovery expedition. Search for life on Mars could target meteorites Australian researchers have revealed a surprising new target in the search for life …

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Watch Martian Clouds Scoot, Thanks to NASA’s Curiosity

Clouds Sailing Overhead on Mars, Enhanced Wispy clouds float across the Martian sky in this accelerated sequence of enhanced images from NASA’s Curiosity Mars rover. The rover’s Navigation Camera (Navcam) took these eight images over a span of four minutes …

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Cassini to Begin Final Five Orbits Around Saturn

This artist’s rendering shows Cassini as the spacecraft makes one of its final five dives through Saturn’s upper atmosphere in August and September 2017. Credit: NASA/JPL-Caltech Cassini to Begin Final Five Orbits Around Saturn NASA’s Cassini spacecraft will enter new …

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Solar eclipse adds cosmic twist to Emory orientation

“It’s a strange coincidence that the moon at its distance and size almost perfectly covers the sun at its distance and size,” says Emory physicist Sidney Perkowitz. “It makes you stop and wonder — is it just a coincidence? Some …

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New Clues to Universe’s Structure Revealed

Map of dark matter made from gravitational lensing measurements of 26 million galaxies in the Dark Energy Survey. The map covers about 1/30th of the entire sky and spans several billion light years in extent. Red regions have more dark …

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T2K Presents first Indication of CP Violation by Neutrinos

(Fig.1) Overview of the T2K experiment   T2K Presents first Indication of CP Violation by Neutrinos The international T2K Collaboration strengthened its previous hint that the symmetry between matter and antimatter may be violated for neutrino oscillation. A preliminary analysis …

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TESS mission to discover new planets moves toward launch

Engineers test one of the TESS cameras at the Kavli Institute lab. Courtesy of the Kavli Institute   TESS mission to discover new planets moves toward launch Satellite’s cameras have been delivered by MIT researchers and passed NASA inspection. Helen …

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Structure of dark matter brought in to the light

Map of dark matter made from gravitational lensing measurements of 26 million galaxies in the Dark Energy Survey.   Structure of dark matter brought in to the light University of Queensland researchers have joined an international team of more than …

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Five Years Ago and 154 Million Miles Away: Touchdown!

View Toward ‘Vera Rubin Ridge’ on Mount Sharp, Mars This look ahead from NASA’s Curiosity Mars rover includes four geological layers to be examined by the mission, and higher reaches of Mount Sharp beyond the planned study area. The redder …

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NASA Selects Proposals to Study Sun, Space Environment

Heliophysics is the study of how the Sun affects space and the space environment of planets.   NASA Selects Proposals to Study Sun, Space Environment NASA has selected nine proposals under its Explorers Program that will return transformational science about …

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Hubble Detects Exoplanet with Glowing Water Atmosphere

This artist’s concept shows hot Jupiter WASP-121b, which presents the best evidence yet of a stratosphere on an exoplanet. Image credit: Engine House VFX, At-Bristol Science Centre, University of Exeter   Hubble Detects Exoplanet with Glowing Water Atmosphere Scientists have …

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First and Farthest: How the Voyagers Blazed Trails

This montage of images of the planets visited by Voyager 2 was prepared from an assemblage of images taken by the 2 Voyager spacecraft. The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, California. Image credit: …

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New Insights into Titan’s Complex Chemistry

Titan: Complex ‘Anti-greenhouse’ This natural color image shows Titan’s upper atmosphere — an active place where methane molecules are being broken apart by solar ultraviolet light and the byproducts combine to form compounds like ethane and acetylene. The haze preferentially …

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