Tag Archive for 'Solar System'

This artist’s concept shows NASA’s Dawn spacecraft arriving at Ceres. Image credit: NASA / JPL-Caltech.

NASA’s Dawn Mission Ends as Spacecraft Runs Out of Fuel

Nov 2, 2018 by News Staff

NASA declares Dawn, a mission to the two largest bodies in the Solar System’s main asteroid belt, Vesta and Ceres, over after the spacecraft depletes...

This mosaic of images from the MDIS Narrow Angle Camera on NASA’s MESSENGER spacecraft shows the impact crater Hokusai, located on Mercury at a latitude of 58°N. The crater has an impressive system of rays, which extend as much as a thousand kilometers (more than 600 miles) across the planet and are the longest that have yet been identified on Mercury. Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Carnegie Institution of Washington.

The Great Wave that Brought Water to Mercury

Nov 1, 2018 by James Romero

The impact that formed Mercury’s spectacular 100-km (62-mile) wide Hokusai crater, named after the famous Japanese artist, who created the Great Wave...

The white, elongated cloud in the vicinity of the Arsia Mons volcano, close to the planet’s equator. Image credit: ESA / GCP / UPV / EHU Bilbao / CC BY-SA 3.0 IGO.

ESA’s Mars Express Orbiter Spots Elongated Cloud in Martian Atmosphere

Oct 29, 2018 by News Staff

Since September 13, 2018, ESA’s Mars Express spacecraft has been observing the evolution of a water ice cloud formation hovering in the vicinity of Arsia...

An artist’s impression of the Kordylewski dust cloud in the night sky. Image credit: Gábor Horváth.

Astronomers Confirm Existence of Kordylewski Dust Clouds

Oct 29, 2018 by News Staff

A research team from Hungary has confirmed the existence of two enigmatic celestial objects called Kordylewski dust clouds (KDCs) — large concentrations...

Mosaic of the Valles Marineris hemisphere of Mars projected into point perspective, a view similar to that which one would see from a spacecraft. The distance is 1,550 miles (2,500 km) from the surface of the planet. The mosaic is composed of 102 Viking Orbiter images of Mars. The center of the scene shows the entire Valles Marineris canyon system, over 1,240 miles (2,000 km) long and up to 5 miles (8 km) deep, extending form Noctis Labyrinthus, the arcuate system of graben to the west, to the chaotic terrain to the east. Many huge ancient river channels begin from the chaotic terrain from north-central canyons and run north. The three Tharsis volcanoes (dark red spots), each about 15.5 miles (25 km) high, are visible to the west. South of Valles Marineris is very ancient terrain covered by many impact craters. Image credit: NASA / JPL-Caltech.

Salty, Oxygenated Water on Mars Could Host Simple Aerobic Life

Oct 23, 2018 by News Staff

Caltech researcher Vlada Stamenković and co-authors calculated that if liquid water exists on the Red Planet, it could contain more oxygen than previously...

European-Japanese BepiColombo Spacecraft is on Its Way to Mercury

Oct 23, 2018 by News Staff

BepiColombo, a joint endeavor between the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA), blasted off from Europe’s Spaceport...

Comet C/2016 R2 (PanSTARRS). Image credit: Damian Peach, www.damianpeach.com / Jose J. Chambo, www.cometografia.es.

Astronomers Spot Rare Blue Comet: C/2016 R2

Oct 16, 2018 by Sergio Prostak

C/2016 R2 (PanSTARRS), a visitor from the Solar System’s distant Oort Cloud, sports a very complex tail dominated by blue light and is unusually rich...

An artist’s impression of MASCOT during landing. Image credit: DLR.

Asteroid Lander MASCOT Completes Exploration of Ryugu

Oct 12, 2018 by News Staff

The Mobile Asteroid Surface Scout (MASCOT), a lander carried by JAXA’s Hayabusa-2 spacecraft, successfully completed its historic exploration of the...

Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young craters overlying a mixture of older, darker, more cratered terrain laced with grooves and ridges; the large circular feature on the upper right, called Galileo Regio, is an ancient region of unknown origin; Ganymede is thought to have an ocean layer that contains more water than Earth and might contain life; like Earth’s Moon, Ganymede keeps the same face towards its central planet, in this case Jupiter; this image was taken about 20 years ago by NASA’s Galileo probe, which ended its mission by diving into Jupiter’s atmosphere in 2003; currently, NASA’s Juno spacecraft orbits Jupiter and is studying the giant planet’s internal structure, among many other attributes. Image credit: NASA / JPL / Galileo probe.

Planetary Researchers Find Evidence of Ancient Strike-Slip Tectonics on Ganymede

Oct 12, 2018 by News Staff

A new study, published in the journal Icarus, reveals Ganymede — the largest and most massive moon of Jupiter and in the Solar System — appears...

NASA’s Cassini spacecraft in orbit around Saturn. Image credit: NASA / JPL-Caltech.

New Science Results from Cassini’s Grand Finale

Oct 11, 2018 by News Staff

Cassini’s 20-year mission culminated in a series of wild orbits. First, it grazed the outer rim of Saturn’s rings and then, in the Grand Finale phase,...

Terrestrial penitentes from the southern end of the Chajnantor plain, Chile, in 2005; the view is broadly northwards; blades can be seen perpendicular to the viewing direction. Image credit: ESO.

50-Foot-Tall Ice Spikes Cover Europa, New Study Suggests

Oct 9, 2018 by News Staff

Fields of sharp ice growing to almost 50 feet (15 m) tall could be scattered across the equatorial regions of Jupiter’s moon Europa, according to a new...

This image shows the position of NASA’s Voyager 1 and Voyager 2 probes, relative to the heliosphere. Image credit: NASA / JPL-Caltech.

NASA’s Voyager 2 Probe About to Leave Solar System

Oct 8, 2018 by News Staff

NASA’s Voyager 2 spacecraft has detected an increase in cosmic rays that originate outside the Solar System. Currently, the probe is approximately 11...

This image of 2015 TG387 was taken by the Subaru Telescope on October 13, 2015. Image credit: Dave Tholen / Chad Trujillo / Scott Sheppard.

Astronomers Find New Extreme Dwarf Planet: 2015 TG387

Oct 5, 2018 by News Staff

Astronomers have discovered a new dwarf planet in the Oort Cloud, a spherical ‘cloud’ of frozen objects surrounding the Solar System and extending...

An artistic conception of the early Earth. Image credit: Simone Marchi / NASA.

Plate Tectonics Was Active from Earth’s Very Beginning, Study Suggests

Oct 1, 2018 by News Staff

New research overturns previous scientific beliefs that Earth’s tectonic plates were developed over the course of billions of years. An artistic conception...

Martian moon Phobos. Image credit: NASA / JPL-Caltech / University of Arizona.

Phobos May Have Come from Massive Impact on Mars

Sep 26, 2018 by News Staff

The Martian moons Phobos and Deimos have been suggested to be captured asteroids based on the similarities between the dark, red, nearly featureless spectra...

An artist’s concept of a dust storm on Titan. Image credit: NASA / ESA / IPGP / Labex UnivEarthS / University Paris Diderot.

Cassini Scientists Spot Dust Storms on Saturn’s Moon Titan

Sep 25, 2018 by News Staff

Researchers using data from NASA’s Cassini orbiter have found evidence for massive dust storms in Titan’s equatorial regions. The discovery, reported...

An artist’s impression of a terraformed Mars. Image credit: Daein Ballard / CC BY-SA 3.0.

Ancient Mars Had Ample Chemical Energy to Support Subsurface Microbial Colonies

Sep 25, 2018 by News Staff

Mars had right conditions for subsurface life some 3.7 to 4.1 billion years ago (Noachian period), according to new research from Brown University. An...

First light data from Parker Solar Probe’s WISPR instrument suite: the right side of this image -- from WISPR’s inner telescope -- has a 40-degree field of view, with its right edge 58.5 degrees from the Sun’s center; the bright object slightly to the right of the image's center is Jupiter; the left side of the image is from WISPR’s outer telescope, which has a 58-degree field of view and extends to about 160 degrees from the Sun; it shows the Milky Way, looking at the Galactic center; there is a parallax of about 13 degrees in the apparent position of the Sun as viewed from Earth and from Parker Solar Probe. Image credit: NASA / Naval Research Laboratory / Parker Solar Probe.

NASA’s Parker Solar Probe Gathers First Data

Sep 21, 2018 by News Staff

One month after its successful launch, Parker Solar Probe — a NASA’s robotic spacecraft designed to explore the Sun’s atmosphere — has...

A ‘brown barge’ cyclone in Jupiter’s South Equatorial Belt. Citizen scientist Kevin M. Gill created this image using data from the JunoCam imager aboard NASA’s Juno spacecraft. Image credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill.

NASA’s Juno Orbiter Spots ‘Brown Barge’ Cloud on Jupiter

Sep 19, 2018 by News Staff

A new image from NASA’s Juno spacecraft shows a long, brown oval known as a ‘brown barge’ in Jupiter’s southern hemisphere. A ‘brown barge’...

This Pluto mosaic was made from New Horizons LORRI images taken on July 14, 2015, from a distance of 49,700 miles (80,000 km). This view is projected from a point 1,118 miles (1,800 km) above Pluto’s equator, looking northeast over the dark, cratered Cthulhu Regio toward the bright, smooth expanse of icy plains called Sputnik Planum. Pluto’s North Pole is off the image to the left. This mosaic was produced with panchromatic images from the New Horizons LORRI camera, with color overlaid from the Ralph color mapper onboard New Horizons. Image credit: S.A. Stern et al.

Researchers Say the Reason Pluto Lost Its Planet Status is Not Valid

Sep 10, 2018 by News Staff

In 2006, the International Astronomical Union (IAU) established a definition of a planet that required it to clear its orbit, or in other words, be the...

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