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A team led by Scott S. Sheppard from Carnegie Institute of Science found 20 new moons orbiting Saturn. Pixabay

Saturn now has 82 moons – three more than Jupiter’s 79 moons – and each of the 20 newly-discovered Saturn moons is about five kms in diameter.

A team led by Scott S. Sheppard from Carnegie Institute of Science found 20 new moons orbiting Saturn. Seventeen of them orbit the planet backwards, or in a retrograde direction, meaning their movement is opposite of the planet’s rotation around its axis.


The other three moons orbit in the prograde — the same direction as Saturn rotates.

Two of the prograde moons are closer to the planet and take about two years to travel once around Saturn.

The more-distant retrograde moons and one of the prograde moons each take more than three years to complete an orbit.

“Studying the orbits of these moons can reveal their origins, as well as information about the conditions surrounding Saturn at the time of its formation,” said Sheppard.


The new moons for Saturn were discovered using the Subaru telescope atop Mauna Kea in Hawaii. Pixabay

The new moons were discovered using the Subaru telescope atop Mauna Kea in Hawaii. The observing team included Sheppard, David Jewitt of University of California Los Angeles and Jan Kleyna of the University of Hawaii.

These moons may have once comprised a larger moon that was broken apart in the distant past.

“The fact that these newly discovered moons were able to continue orbiting Saturn after their parent moons broke apart indicates that these collisions occurred after the planet-formation process was mostly complete and the disks were no longer a factor,” Sheppard noted.


Jupiter has 79 Moons, now 3 less than Saturn. Pixabay

The “retrograde” moons have similar inclinations to other previously known retrograde Saturnian moons, indicating that they are also likely fragments from a once-larger parent moon that was broken apart.

“This kind of grouping of outer moons is also seen around Jupiter, indicating violent collisions occurred between moons in the Saturnian system or with outside objects such as passing asteroids or comets,” explained Sheppard.

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Last year, Sheppard discovered 12 new moons orbiting Jupiter and Carnegie hosted an online contest to name five of them.

“This time, the moons must be named after giants from Norse, Gallic, or Inuit mythology,” said Sheppard. (IANS)


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Photo by Wikimedia Commons

Japan launched its new satellite, QZS-1R.

Japan has successfully launched a new navigation satellite into orbit that will replace its decade-old navigation satellite.

The satellite, QZS-1R, was launched onboard an H-2A rocket that lifted off from the Tanegashima Space Center at 10.19 p.m. on Monday night, Mitsubishi Heavy Industries said in a statement.

The company builds and operates H-2A rockets the Japan Aerospace Exploration Agency (JAXA).

QZS-1R is a replacement for Quasi-Zenith Satellite System 1 satellite first launched in 2010. “It was a really beautiful launch," the company said in a tweet after a successful lift-off.

"H-IIA F44 flight proceeded nominally. Approximately 28 minutes 6 seconds after launch, as planned, the payload separated from the launch vehicle," the statement said.

The official QZSS website lists four satellites in the constellation: QZS-1, QZS-2, QZS-3 and QZS-4, Space.com reported.

The QZSS constellation will eventually consist of a total of seven satellites that fly in an orbit passing through a near-zenith (or directly overhead) above Japan, and QZS-R1 is meant to share nearly the same transmission signals as recent GPS satellites, according to JAXA.

It is specially optimised for mountainous and urban regions in Japan, JAXA said.

Mitsubishi's H-2A 202 rocket launch system has been operational since 2003 and has sent satellites to locations such as Venus (Akatsuki) and Mars (Emirates Mars Mission).

The latest H2-A rocket launch is the first since November 29, 2020, when Japan launched an advanced relay satellite with laser communications tech into orbit, the report said. (IANS/JB)


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Photo by Mike Enerio on Unsplash

Fireworks light up the night sky

Everyone loves firecrackers, even the most environment-friendly advocates cannot hide their joy when they see these delightful lights colour the skies. India celebrates Diwali in the true spirit of her culture and heritage by spraying the navy-blue skies with sparkling hues of gold, silver, red, and green. Firecrackers are not just a tradition in this country, they are a legacy.

The original connotation one makes with fireworks in China. The elaborate Chinese celebrations with dragons and zapping firecrackers have left their mark in human memory, but the use of fireworks is not limited to heralding the Chinese New Year. All over the world, fireworks have come to symbolise the ultimate celebration. During Diwali in India, this spirit is re-ignited every year.

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A visitor looks at statues of the 'Royal treasures of Abomey kingdom' on display at the Musee du quai Branly in Paris on Sept. 10, 2021, part of 26 artworks set to be restituted to Benin later in the year.

PARIS — In a decision with potential ramifications across European museums, France is displaying 26 looted colonial-era artifacts for one last time before returning them home to Benin.

The wooden anthropomorphic statues, royal thrones and sacred altars were pilfered by the French army in the 19th century from Western Africa.

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