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December 21, 2016
SATURN DAILY
Cassini offers a crash course in ring world orbital mechanics



Pasadena CA (JPL) Dec 21, 2016
It may look as though Saturn's moon Mimas is crashing through the rings in this image taken by NASA's Cassini spacecraft, but Mimas is actually 28,000 miles (45,000 kilometers) away from the rings. There is a strong connection between the icy moon and Saturn's rings, though. Gravity links them together and shapes the way they both move. The gravitational pull of Mimas (246 miles or 396 kilometers across) creates waves in Saturn's rings that are visible in some Cassini images. Mimas' gravity also h ... read more

EXO WORLDS
ALMA finds compelling evidence for pair of infant planets around young star
Astronomers now know that our galaxy is teeming with planets, from rocky worlds roughly the size of Earth to gas giants bigger than Jupiter. Nearly every one of these exoplanets has been discovered ... more
EXO WORLDS
Rings around young star suggest planet formation in progress
Rice University astronomers and their colleagues have for the first time mapped gases in three dark rings around a distant star. The rings mark spaces where planets are thought to have formed from d ... more
SATURN DAILY
Saturn's bulging core implies moons younger than thought
Freshly harvested data from NASA's Cassini mission reveals that the ringed planet's moons may be younger than previously thought. "All of these Cassini mission measurements are changing our view of ... more
SATURN DAILY
Cassini Beams Back First Images from New Orbit
NASA's Cassini spacecraft has sent to Earth its first views of Saturn's atmosphere since beginning the latest phase of its mission. The new images show scenes from high above Saturn's northern hemis ... more
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SATURN DAILY
Cassini Makes First Ring-Grazing Plunge
NASA's Saturn-orbiting Cassini spacecraft has made its first close dive past the outer edges of Saturn's rings since beginning its penultimate mission phase on Nov. 30. Cassini crossed through the p ... more
SATURN DAILY
NASA Saturn Mission Prepares for 'Ring-Grazing Orbits'
A thrilling ride is about to begin for NASA's Cassini spacecraft. Engineers have been pumping up the spacecraft's orbit around Saturn this year to increase its tilt with respect to the planet's equa ... more
SATURN DAILY
Vast equatorial jet stream in Saturn's atmosphere are revealed
The atmosphere of the planet Saturn, a gas giant ten times bigger than the Earth consisting mostly of hydrogen, has a wider, more intense jet stream than all the planets in the Solar System. Winds g ... more
SATURN DAILY
Watching Summer Clouds on Titan
NASA's Cassini spacecraft watched clouds of methane moving across the far northern regions of Saturn's largest moon, Titan, on Oct. 29 and 30, 2016. Several sets of clouds develop, move over t ... more
OUTER PLANETS
Mystery solved behind birth of Saturn's rings
A team of researchers has presented a new model for the origin of Saturn's rings based on results of computer simulations. The results of the simulations are also applicable to rings of other giant ... more


Giant Rings Around Exoplanet Turn in the Wrong Direction

EXO WORLDS
How Planets Like Jupiter Form
Young giant planets are born from gas and dust. Researchers of ETH Zurich and the Universities of Zurich and Bern simulated different scenarios relying on the computing power of the Swiss National S ... more
SATURN DAILY
Titan experiences dramatic seasonal changes
As Titan approaches its northern summer solstice, NASA's Cassini spacecraft has revealed dramatic seasonal changes in the atmospheric temperature and composition of Saturn's largest moon. Wint ... more
All eyes on Trump over Mars
The year 2016 has seen a rekindling of the human desire to conquer Mars, with public and private interests openly vying to take the first step on the Red Planet, possibly with a stopover on the Moon. Space-faring nations are mostly united in viewing Mars as the next frontier with many still pooling their money and expertise to make the dream a reality, despite souring relations between them. ... more
Opportunity performs several drives to ancient gully

Full go-ahead for building ExoMars 2020

Skimming an alien atmosphere

Lunar sonic booms
The sonic boom created by an airplane comes from the craft's large, speeding body crashing into molecules in the air. But if you shrank the plane to the size of a molecule, would it still generate a shock wave? Scientists such as University of Iowa physicist Jasper Halekas hope to answer that question by studying miniature shock waves on the moon. These sonic boomlets, physicists believe, ... more
India Inc joins hands to bid for moon mission

TeamIndus signs contract with ISRO for lunar mission

Moonwalker Buzz Aldrin stable after South Pole health scare

Cassini offers a crash course in ring world orbital mechanics
It may look as though Saturn's moon Mimas is crashing through the rings in this image taken by NASA's Cassini spacecraft, but Mimas is actually 28,000 miles (45,000 kilometers) away from the rings. There is a strong connection between the icy moon and Saturn's rings, though. Gravity links them together and shapes the way they both move. The gravitational pull of Mimas (246 miles or 396 kil ... more
Saturn's bulging core implies moons younger than thought

Cassini Makes First Ring-Grazing Plunge

Cassini Beams Back First Images from New Orbit

Chinese missile giant seeks 20% of a satellite market
China Aerospace Science and Industry Corp, the largest missile maker in the country, is taking aim at 20 percent or more of the small-satellite launch contracts in the world by 2020, company executives said. "We estimate that from 2017 to 2020, we will send aloft at least 10 solid-fuel carrier rockets each year, to send about 50 small satellites into orbit," said Guo Yong, president of the ... more
China-made satellites in high demand

Space exploration plans unveiled

China launches 4th data relay satellite

The Last Free American Board Game
Juno Captures Jupiter 'Pearl'
This image, taken by the JunoCam imager on NASA's Juno spacecraft, highlights the seventh of eight features forming a 'string of pearls on Jupiter - massive counterclockwise rotating storms that appear as white ovals in the gas giant's southern hemisphere. Since 1986, these white ovals have varied in number from six to nine. There are currently eight white ovals visible. The image was ta ... more
Juno Mission Prepares for December 11 Jupiter Flyby

Research Offers Clues About the Timing of Jupiter's Formation

New Perspective on How Pluto's "Icy Heart" Came to Be

Astronomers discover dark past of planet-eating 'Death Star'
An international team of scientists, including researchers from the University of Chicago, has made the rare discovery of a planetary system with a host star similar to Earth's sun. Especially intriguing is the star's unusual composition, which indicates it ingested some of its planets. "It doesn't mean that the sun will 'eat' the Earth any time soon," said Jacob Bean, assistant professor ... more
Microlensing Study Suggests Most Common Outer Planets Likely Neptune-mass

Are planets like those in 'Star Wars

Exciting new creatures discovered on ocean floor

First Light for Breakthrough Listen at Parkes Telescope
Breakthrough Listen, the 10-year, $100-million astronomical search for intelligent life beyond Earth launched in 2015 by Internet entrepreneur Yuri Milner and Stephen Hawking, has announced its first observations using the Parkes Radio Telescope in New South Wales, Australia. Parkes joins the Green Bank Telescope (GBT) in West Virginia, USA, and the Automated Planet Finder (APF) at Lick Ob ... more
Search for ET underway with Parkes Radio Telescope

Breakthrough Listen to Search for Intelligent Life Around Tabby's Star

New bacteria groups, and stunning diversity, discovered underground

There's a jet stream in our core
We would normally associate jet streams with the weather but, thanks to ESA's magnetic field mission, scientists have discovered a jet stream deep below Earth's surface - and it's speeding up. Launched in 2013, the trio of Swarm satellites are measuring and untangling the different magnetic fields that stem from Earth's core, mantle, crust, oceans, ionosphere and magnetosphere. Toget ... more
Space-based lidar shines new light on plankton

Revolutions in understanding the ionosphere, Earth's interface to space

Researchers dial in to 'thermostat' in Earth's upper atmosphere

International SMR and Advanced Reactor Summit 2018 - March 27-28 - Atlanta USA
ALPHA observes light spectrum of antimatter for first time
In a paper published in the journal Nature, the ALPHA collaboration reports the first ever measurement on the optical spectrum of an antimatter atom. This achievement features technological developments that open up a completely new era in high-precision antimatter research. It is the result of over 20 years of work by the CERN antimatter community. "Using a laser to observe a transition i ... more
Number of known black holes expected to double in two years with new detection method

Stretching time to improve extreme event prediction

New theoretical framework for improved particle accelerators

Extraterrestrial impact preceded ancient global warming event
A comet strike may have triggered the Paleocene-Eocene Thermal Maximum (PETM), a rapid warming of the Earth caused by an accumulation of atmospheric carbon dioxide 56 million years ago, which offers analogs to global warming today. Sorting through samples of sediment from the time period, researchers at Rensselaer Polytechnic Institute discovered evidence of the strike in the form of micro ... more
Scientists use Moon to study dinosaur killer

At the Jersey shore, signs of a comet, and a climate crisis

Research supports idea that moon was created by object hitting infant Earth

The case of the missing diamonds
It all began innocently enough. Tyrone Daulton, a physicist with the Institute for Materials Science and Engineering at Washington University in St. Louis, was studying stardust, tiny specks of heat-resistant minerals thought to have condensed from the gases exhaled by dying stars. Among the minerals that make up stardust are tiny diamonds. In 2007, Richard Kerr, a writer for the journal S ... more
Ceres Offers Insight Into Prospects For Life in Early Solar System

Studies refute hypothesis on what caused abrupt climate change thousands of years ago

Rosetta's last words: science descending to a comet

Daily Newsletters - Space - Military - Environment - Energy
Scientists measure pulse of CO2 emissions during spring thaw in the Arctic
When the frozen Arctic tundra starts to thaw around June of each year, the snow melting and the ground softening, the soil may release a large pulse of greenhouse gases, namely, carbon dioxide and methane. Little has been known about such releases. Now scientists at the U.S. Department of Energy's (DOE) Lawrence Berkeley National Laboratory, in collaboration with a team of other scientists takin ... more
Satellites observe 'traffic jams' in Antarctic Ice Stream caused by tides

Landsat provides global view of speed of ice

Global warming is melting mountain glaciers: study

Chinese missile giant seeks 20% of a satellite market
China Aerospace Science and Industry Corp, the largest missile maker in the country, is taking aim at 20 percent or more of the small-satellite launch contracts in the world by 2020, company executives said. "We estimate that from 2017 to 2020, we will send aloft at least 10 solid-fuel carrier rockets each year, to send about 50 small satellites into orbit," said Guo Yong, president of the ... more
China-made satellites in high demand

Space exploration plans unveiled

China launches 4th data relay satellite

Scientists measure pulse of CO2 emissions during spring thaw in the Arctic
When the frozen Arctic tundra starts to thaw around June of each year, the snow melting and the ground softening, the soil may release a large pulse of greenhouse gases, namely, carbon dioxide and methane. Little has been known about such releases. Now scientists at the U.S. Department of Energy's (DOE) Lawrence Berkeley National Laboratory, in collaboration with a team of other scientists takin ... more
Satellites observe 'traffic jams' in Antarctic Ice Stream caused by tides

Landsat provides global view of speed of ice

Global warming is melting mountain glaciers: study

Cassini offers a crash course in ring world orbital mechanics
It may look as though Saturn's moon Mimas is crashing through the rings in this image taken by NASA's Cassini spacecraft, but Mimas is actually 28,000 miles (45,000 kilometers) away from the rings. There is a strong connection between the icy moon and Saturn's rings, though. Gravity links them together and shapes the way they both move. The gravitational pull of Mimas (246 miles or 396 kil ... more
Saturn's bulging core implies moons younger than thought

Cassini Makes First Ring-Grazing Plunge

Cassini Beams Back First Images from New Orbit



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