Space Exploration News

This view from Cassini was obtained about half a day before its first close pass by the outer edges of Saturn’s main rings during its penultimate mission phase. The view shows part of the giant, hexagon-shaped jet stream around the planet’s north pole. Each side of the hexagon is about as wide as Earth. A circular storm lies at the center, at the pole. The image was taken with Cassini’s wide-angle camera on Dec. 3, 2016, at a distance of about 240,000 miles (390,000 km) from Saturn. Image credit: NASA / JPL-Caltech / Space Science Institute.

Cassini Beams Back Spectacular Images from Its First ‘Ring-Grazing’ Orbit

Dec 9, 2016 by News Staff

NASA’s Cassini orbiter has beamed back its first photos of the gas giant Saturn and the planet’s major moons since beginning the so-called ‘ring-grazing’...

A giant of a moon appears before a giant of a planet undergoing seasonal changes in this natural color view of Titan and Saturn from NASA’s Cassini spacecraft. Image credit: NASA / JPL-Caltech / SSI.

Saturn’s Moons May Be Younger than Previously Thought

Dec 7, 2016 by News Staff

New data from NASA’s Cassini spacecraft reveal that Saturn’s moons may be younger than previously thought. A giant of a moon appears before a giant...

Artist rendition of NASA’s TIMED spacecraft. The satellite is orbiting at 388 miles (625 km) and viewing in the anti-sunward limb direction. Image credit: NASA.

NASA’s TIMED Satellite Finds Hot Atomic Hydrogen in Earth’s Thermosphere

Dec 7, 2016 by News Staff

Using data from NASA’s TIMED satellite, scientists have discovered the existence of hot atomic hydrogen atoms in the thermosphere (from about 56 to 311...

This graphic shows the closest approaches of Cassini’s final two orbital phases. Ring-grazing orbits are shown in gray (at left); Grand Finale orbits are shown in blue. The orange line shows the spacecraft’s Sept. 2017 final plunge into Saturn. Image credit: NASA / JPL-Caltech.

NASA’s Cassini Orbiter Makes Its First ‘Ring-Grazing’ Dive

Dec 6, 2016 by News Staff

On Dec. 4, 2016 at 8:09 a.m. EST (5:09 a.m. PST), NASA’s Cassini spacecraft made its first close dive past the outer edges of Saturn’s rings. This...

Astronaut Bruce McCandless II, STS 41-B mission specialist, participates in a historical spacewalk. He is pictured a few meters away from the cabin of the Earth-orbiting Space Shuttle Challenger. This spacewalk represented the first use of a nitrogen-propelled, hand-controlled device called the Manned Maneuvering Unit (MMU), which allows for much greater mobility than that afforded previous space walkers who had to use restrictive tethers. Image credit: NASA.

Researchers Identify Cause of Visual Impairment in Long-Duration Mission Astronauts

Dec 6, 2016 by News Staff

Astronauts on long-duration flights experience visual impairments due to volume changes in cerebrospinal fluid, the clear fluid that helps cushion the...

Artist’s concept of NASA’s Cassini spacecraft at Saturn. Image credit: NASA.

NASA’s Cassini Spacecraft Prepares for Ring-Grazing Phase

Nov 25, 2016 by News Staff

In the final year of its epic voyage, on Nov. 30, NASA’s Cassini orbiter will begin a daring set of ‘ring-grazing orbits,’ skimming past the outside...

Artist's impression of the Schiaparelli lander after the parachute has been deployed. Image credit: ESA / ATG Medialab.

Schiaparelli Crash Caused by Sensor Malfunction, ESA Experts Say

Nov 24, 2016 by News Staff

The crash of the ExoMars Schiaparelli test lander, also known as Entry, descent, and landing Demonstrator Module (EDM), last month was caused by a sensor...

This image is an artist’s concept of a view looking down on NASA’s Mars Reconnaissance Orbiter. The spacecraft is pictured using its SHARAD instrument to ‘look’ under the surface of Mars. Image credit: NASA.

NASA’s Mars Reconnaissance Orbiter Finds Subsurface Water Ice in Utopia Planitia

Nov 23, 2016 by News Staff

Frozen beneath Utopia Planitia, a large plain on Mars, lies about as much water as what’s in Lake Superior, according to an international team of planetary...

This image of the limb of Ceres shows a section of the northern hemisphere. Prominently featured is Occator Crater. Dawn took this image on Oct. 17, 2016, at a distance of about 920 miles above the surface. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA.

Dawn Snaps New Images of Ceres’ Occator Crater

Nov 23, 2016 by News Staff

NASA’s Dawn spacecraft has captured another series of photos in its fifth orbit of the dwarf planet Ceres. This image of the limb of Ceres shows a section...

Artist’s concept of ocean on Jupiter’s moon Europa. Image credit: NASA / JPL-Caltech.

Ice-Quake Echoes Could Lift Lid on Oceans within Pluto and Europa

Nov 22, 2016 by James Romero

Measuring outer solar system ice-quakes could identify if Europa’s subsurface ocean is an oxygen-rich, leading candidates for life, or uncover the origin...

Using colorized topography, Mercury’s ‘great valley’ (dark blue) and Rembrandt impact basin (purple, upper right) are revealed in this high-resolution digital elevation model merged with an image mosaic obtained by NASA’s MESSENGER spacecraft. Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Carnegie Institution of Washington / DLR / Smithsonian Institution.

Planetary Researchers Spot ‘Great Valley’ on Mercury

Nov 17, 2016 by News Staff

Using images from NASA’s MErcury Surface, Space ENvironment, GEochemistry and Ranging (MESSENGER) spacecraft, planetary researchers have discovered a...

This cutaway image of Pluto shows a section through the area of Sputnik Planitia, with dark blue representing a subsurface ocean and light blue for the frozen crust. Image credit: Pam Engebretson.

New Horizons Data Suggest Viscous Ocean Lies beneath Pluto’s Heart-Shaped Region

Nov 17, 2016 by News Staff

A cold, slushy ocean lying deep beneath Pluto’s bright, heart-shaped Tombaugh Regio is the best explanation for features revealed by NASA’s New Horizons...

The north polar region of Saturn is pictured in great detail in this Cassini image obtained on July 16, 2016 from a range of one million miles (2 million km). The image was taken with Cassini’s wide-angle camera using a spectral filter which preferentially admits wavelengths of near-infrared light centered at 752 nm. The view looks toward the sunlit side of Saturn’s rings from about 41 degrees above the ring plane. Image credit: NASA / JPL-Caltech / Space Science Institute.

Saturn’s North Polar Region Revealed

Nov 15, 2016 by News Staff

New near-infrared images of Saturn from NASA’s Cassini spacecraft show the northern polar region including the hexagon and polar vortex. The north polar...

The Hellas depression. Image credit: Joseph S. Levy et al.

Concentrically-Fractured Depression on Mars Could Be Place to Look for Signs of Microbial Life

Nov 14, 2016 by News Staff

An unusual depression in the northern Hellas basin on Mars could be a new place to look for life on the planet, says a team of planetary researchers. The...

On November 1, HiRISE camera on NASA’s Mars Reconnaissance Orbiter observed the impact site of Schiaparelli lander, gaining the first color view of the site since the lander’s Oct. 19 arrival. These cutouts from the observation cover three locations where parts of Schiaparelli reached the ground: the lander module itself in the upper portion, the parachute and back shell at lower left, and the heat shield at lower right. The heat shield location was outside of the area covered in color. The scale bar of 32.8 feet (10 m) applies to all three cutouts. Image credit: NASA / JPL-Caltech / University of Arizona.

New HiRISE Image Shows Schiaparelli Crash Site in Color

Nov 4, 2016 by News Staff

The latest image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter shows parts of ESA’s ExoMars...

The smooth-surfaced rock at the center of this Oct. 30 image from Curiosity’s Mast Camera was examined by the rover’s ChemCam instrument and confirmed to be an iron-nickel meteorite. Image credit: NASA / JPL-Caltech / MSSS.

Curiosity Finds Odd-Looking Iron-Nickel Meteorite on Mars

Nov 3, 2016 by News Staff

A small globular object found by NASA’s Curiosity rover at the Murray Formation of lower Mount Sharp on Mars has been identified as an iron-nickel meteorite. The...

This image is a view from the NASA/ESA Hubble Space Telescope taken on March 22, 2004. Camera exposures in four filters (blue, blue-green, green and red) were combined to form the Hubble image and render colors similar to what the eye would see through a telescope focused on Saturn. Image credit: NASA / ESA / Erich Karkoschka, University of Arizona.

Saturn’s Rings Could Have Formed when Dinosaurs Walked the Earth

Nov 2, 2016 by James Romero

Saturn’s rings are billions of years younger than we thought, say Cornell University researchers analyzing an almost forgotten set of data, collected...

This is an artist's depiction of a catastrophic collision between two celestial bodies; such an impact between the proto-Earth and Theia likely formed the Moon. Image credit: NASA / JPL-Caltech.

Novel Theory Explains Moon’s Weird Orbit

Nov 1, 2016 by News Staff

Earth’s Moon is among the strangest planetary bodies in our Solar System. Its orbit lies unusually far away from our planet, with a surprisingly large...

Artist’s impression of the Schiaparelli module on the surface of Mars. Image credit: ESA / ATG Medialab.

Mars Reconnaissance Orbiter Takes Closer Look at Schiaparelli Crash Site

Oct 28, 2016 by News Staff

An image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter (MRO) reveals further details of the...