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Solar system News

Scientists develop new theory on how Earth's moon was formed

A new theory about how Earth’s moon was formed has been advanced. It speculates that several extra-terrestrial objects struck Earth creating a series of small moons or moonlets. These moonlets gradually merged to form the moon we see today.

Sun spins faster on the outside than on the inside

Despite being relatively close to Earth and a well-studied phenomenon there is still much to learn about the Sun. New research by international astronomers has helped to make an important new discovery about our closest star.

'Death Star' that eats planets discovered

Analysis of the star located 300 light years from Earth showed materials in the body indicating the star has swallowed some of the planets orbiting it. Similar to our Sun, the star provides clues about our own solar system and what is likely to happen.

Essential Science: Mystery of Mercury’s Great Valley

Mercury has long been regarded as one of the Solar System’s more mysterious planets. Despite decades of observations by astronomers new points of interest appear. The latest is with the planet’s great valley.

Weird blue mass detected in front of the Sun

Houston - NASA has reported an unusual phenomenon: a strange blue mass in front of the Sun. The object was detected by the Stereo satellites, and it appeared to pass across the face of the star.

Water detected on asteroid named Psyche

Houston - Water has been detected water on the largest metallic asteroid in the solar system by a team of NASA scientists. The asteroid is called Psyche and it could become the target of a space mission.

Scientists warn Earth to prepare for killer asteroid

Houston - It may seem like the plot of a sci-fi disaster movie, but NASA scientists have given serious consideration of how the Earth should defend itself against an asteroid should such a space rock be on a collision course with our planet.

X-ray mystery surrounds Pluto

Houston - The dwarf planet Pluto continues to tantalize. This follows news that stream of photons have been detected streaming from the planet and into space. The mystery is the planet has no obvious way of making these high-energy photons.

Strange swirling hexagonal structure on Saturn spotted

Houston - The Cassini probe, investigating Saturn, has detected a strange swirling structure, hexagonal in shape, at the north pole of the planet. The structure appears to regularly change color.

More moons detected orbiting Uranus

Houston - The number of moons around Uranus is a matter of scientific debate within the astronomy community. Despite the Voyager probe visiting the planet three decades ago, data collected is still being discussed.

Clouds spotted swirling around Pluto

Despite the downgrading of Pluto from a planet (and the ninth in the solar system) to a dwarf planet, much about the far-flung celestial object remains a mystery. A new puzzle involves the presence of clouds.

Solar system is much bigger than we thought

The size of the solar system, that’s Earth and the planets that orbit the Sun, is much bigger than previous calculations indicated.

Mars once had many moons

Mars, the red planet that is most like Earth in our solar system, once had several moons. It is thought the satellites now form part of the asteroid belt.

NASA detects new moon in our solar system

Houston - A new moon around a dwarf planet has been detected beyond the reaches of Pluto. This has been detected by NASA’s New Horizons spacecraft.

Essential Science: Did Jupiter wander away from the Sun?

Astronomers have long wondered why there are no planets closer to the Sun than Mercury. To have planets closer is common with many stars. The answer might be due to Jupiter having once been located closer to our star, suggests a new theory.

NASA Dawn mission reveals dwarf planet Ceres with crystal clarity

Pasadena - The latest images of Ceres, taken by NASA’s Dawn spacecraft, show sections of this mysterious dwarf planet in breathtaking detail.

New Horizons: Solar wind stripping away Pluto's atmosphere

Baltimore - The latest data from NASA’s Pluto probe, New Horizons, suggests the dwarf planet’s atmosphere is being stripped away by the solar wind and lost to space.

Data from Pluto mission expected to keep arriving for 16 months

Laurel - The universe itself may be billions of years old, but that doesn't mean all of its components were created at the same time.

Martian meteorites provide intriguing hints of life on Mars

Aberdeen - A further clue in the search for life on Mars has emerged after a team of scientists discovered traces of methane in Martian meteorites.

A 'new' crater on Mars as never seen before

Tucson - NASA has released a spectacular hi-res image of a “new” crater in the Sirenum Fossae region of Mars taken by the HiRise instrument on board the Mars Reconnaissance Orbiter (MRO).

Pluto: Observing chaos at solar system's outer limits

Munich - Gathering all available telescope data on the minor planet Pluto and its satellites from NASA and the European Space Agency (ESA), two astronomers have carried out the most in depth analysis yet of one of the solar systems great mysteries.

NASA’s Cassini's last fly-by of Saturn’s weird moon Hyperion

Pasadena - NASA’s Cassini spacecraft makes what will be its last close approach to Saturn’s oddly shaped moon, Hyperion, today, Sunday, May 31.

Sounding out Mars: NASA starts trials for next lander mission

Pasadena - Trials have now started on NASA’s next piece of Mars wizardry, a stationary lander scheduled to head off to the Red Planet, March 2016.

NASA's Messenger spacecraft takes final plunge into Mercury

Cape Canaveral - NASA’s long-trekking Messsenger spacecraft plunged to its destruction April 30 after running out of fuel on its 4,105th orbit of the planet Mercury.

Life on Mars? Curiosity Rover finds biologically useful nitrogen

Pasadena - NASA scientists using instrumentation on board NASA’s Mars Curiosity Rover have discovered nitrogen on the Martian surface for the first time.

Radar 'unclothes' planet Venus

Green Bank - As a planet, Venus, shrouded in thick clouds of carbon dioxide, doesn’t lend itself to visual observation. To lift the veil on Earth’s nearest planetary neighbor, spacecraft such as NASA’s Magellan probe use radar to penetrate Venus' clouds.

What you need to know about this breakthrough treatment of arthritis

British scientists have hailed the results of a new, experimental stem cell treatment for osteoarthritis as "astonishing."

When Mars had an ocean

Garching Bei M - Mars once hosted an ocean containing more water than the Arctic ocean. Not only that but this primitive Martian Sea covered a greater proportion of Mars’ surface than the Atlantic Ocean does on Earth.

When an iron rain fell on Earth

Not much is known about Earth’s “inner space” —its core — although scientists agree on one thing, much of the core consists of iron. But just how much iron is there remains the subject of debate.

Two unknown Earth-sized planets may be part of Solar System

Scientists tracking the orbits of objects on the extreme edge of our solar system believe that there is a good chance that two planets, at least as large as Earth may exist out there.
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V838 Mon  a star with an expanding gas shell  purported as photographic evidence of Nibiru
V838 Mon, a star with an expanding gas shell, purported as photographic evidence of Nibiru
NASA
A projection of the radar data of Venus collected in 2012. Striking surface features -- like mountai...
A projection of the radar data of Venus collected in 2012. Striking surface features -- like mountains and ridges -- are easily seen. The black diagonal band at the center represents areas too close to the Doppler “equator” to obtain well-resolved image data.
B. Campbell, Smithsonian, et al., NRAO/AUI/NSF, Arecibo
A false-color view of Saturn s moon Hyperion revealing crisp details across the strange  tumbling mo...
A false-color view of Saturn's moon Hyperion revealing crisp details across the strange, tumbling moon's surface. Differences in color may represent differences in the composition of surface materials. Taken during Cassini's close flyby on Sept. 26, 2005.
NASA/JPL/Space Science Institute
A false-color image from NASA s Cassini mission highlights the storms at Saturn s north pole. The ey...
A false-color image from NASA's Cassini mission highlights the storms at Saturn's north pole. The eye of a hurricane-like storm appears dark red while the fast-moving hexagonal jet stream framing it is a yellowish green.
NASA/JPL-Caltech/SSI
The Ray system  developed by Focal Technologies of Portland  OR  uses solar technology to help kill ...
The Ray system, developed by Focal Technologies of Portland, OR, uses solar technology to help kill pathogens in agricultural runoff.
Focal Technologies, Inc.
Artist s impression of NASA s OSIRIS-REx asteroid sample spacecraft preparing to take a sample from ...
Artist's impression of NASA's OSIRIS-REx asteroid sample spacecraft preparing to take a sample from asteroid Bennu for later return to and analysis on Earth.
NASA/Goddard
The Solar System  including the objects in question during the IAU s recent planet definition debate...
The Solar System, including the objects in question during the IAU's recent planet definition debate : Ceres, Pluto-Charon, and Eris.
The International Astronomical Union/Martin Kornmesser
An artist’s impression shows how Mars may have looked about four billion years ago. The young plan...
An artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometers.
ESO/M. Kornmesser/N. Risinger (skysurvey.org)
This global view of Jupiter s moon  Io  was obtained during the tenth orbit of Jupiter by NASA s Gal...
This global view of Jupiter's moon, Io, was obtained during the tenth orbit of Jupiter by NASA's Galileo spacecraft. Io, which is slightly larger than Earth's Moon, is the most volcanically active body in the solar system.
NASA/JPL/University of Arizona
Untitled
NASA
NASA s Dawn spacecraft viewed this Cerean crater  which is covered in ridges and steep slopes  calle...
NASA's Dawn spacecraft viewed this Cerean crater, which is covered in ridges and steep slopes, called scarps on Dec. 23, 2015. Such likely resulted when the crater partly collapsed during its formation. The curvilinear nature of the scarps resembles those on the floor of Rheasilvia, the giant impact crater on Vesta, which Dawn orbited from 2011 to 2012. The 20-mile-wide (32-kilometer-wide) crater is located just west of the larger, named crater Dantu at northern mid-latitudes on Ceres.
NASA/JPL
Unusual orbit of Planet X or Planet Nine
Unusual orbit of Planet X or Planet Nine
Caltech
An illustration of the planets and other major bodies of the Solar System
An illustration of the planets and other major bodies of the Solar System
Illustration: NASA
An artist’s impression showing how Mars may have looked about 4 billion years ago. The young plane...
An artist’s impression showing how Mars may have looked about 4 billion years ago. The young planet would have had enough water to cover its entire surface in a liquid layer about 140 metres deep. More likely, however, the liquid would have pooled forming an ocean spanning almost half of Mars' northern hemisphere, in some regions reaching depths greater than 1.6 kilometers.
ESO/M. Kornmesser
Panoramic View From  Rocknest  Position of Curiosity Mars Rover:
A mosaic of images taken by the Mas...
Panoramic View From 'Rocknest' Position of Curiosity Mars Rover: A mosaic of images taken by the Mast Camera on NASA Mars rover Curiosity while the rover was working at a site called "Rocknest" in October & November 2012.
Image Credit: NASA/JPL-Caltech/Malin Space Science Systems
Ceres in solar system
Ceres in solar system
UCIrvine
Monday s launch of the Chang e-3 lunar mission took place at 1:30 am local time  from the Xichang Sa...
Monday's launch of the Chang'e-3 lunar mission took place at 1:30 am local time, from the Xichang Satellite Launch Centre in Sichuan Province,
Xinhua Official Chinese News Agency
Valles Marineris on Mars
Valles Marineris on Mars
ESA DLR Mars Express
When the OSIRIS-REx spacecraft arrives at asteroid Bennu  it will study the asteroid from a distance...
When the OSIRIS-REx spacecraft arrives at asteroid Bennu, it will study the asteroid from a distance before swooping down and grabbing a sample. On board of the craft will be the names of everybody participating in the "Messages to Bennu!" campaign.
NASA/University of Arizona
Illustration showing the scale and comparative brightness of Pluto’s small satellites. Pluto’s b...
Illustration showing the scale and comparative brightness of Pluto’s small satellites. Pluto’s binary companion, Charon, is at the bottom for scale. The image illustrates that two of the moons are highly oblate and that the reflectivity among the moons varies from dark charcoal to the brightness of sand.Hubble can't resolve surface features on the moons so textures are purely for illustration purposes.
NASA, ESA, A. Field (STScI)