12 new moons discovered around Jupiter

18 Juillet, 2018, 01:40 | Auteur: Therese Cote

And astronomers have just announced the discovery of a dozen more.

The new find boosts Jupiter's moon count to 79, easily making it the most populous place for moons in our solar system.

This isn't likely to be the last new moons that we hear about coming from the gas giant, and astronomers believe there are still plenty smaller satellites that remain undetected. University of Hawaii's Dave Tholen and Northern Arizona University's Chad Trujillo are also part of the planet search team.

But cosmic serendipity placed the moons in front of their telescope.

A greater number of irregular moons because it tells us about a time during Jupiter's formation when the planet was still growing. That's why, in March 2017, the team was studying the sky from the Cerro-Tololo Inter-American Observatory in Chile.

But what's particularly wild about these newly discovered moons is that researchers weren't even looking for them. "It was a long process", said Scott Sheppard, who led the effort at the Carnegie Institution for Science in Washington DC.

Jupiter's moons range in size from shrimpy satellites to whopping space hulks.

In 2014, this same team found the object with the most-distant known orbit in our Solar System and was the first to realize that an unknown massive planet at the fringes of our Solar System, far beyond Pluto, could explain the similarity of the orbits of several small extremely distant objects.

All of the moons orbit much further out than the Galilean moons you may have heard of: Europa, Ganymede, Io and Callisto.

15 dead as suspected ISIS rivals attack Afghan Taliban
The U.S. officials said Monday that Afghan-to-Afghan negotiation remains the goal of any engagement with the militants. Provincial council chief Mohammed Noor Rahman said the explosion occurred in a mosque as a funeral was taking place.

'No Liability': MGM Sues Las Vegas Shooting Victims
From the day of this tragedy, we have focused on the recovery of those impacted by the despicable act of one evil individual. This new lawsuit would also bring the case to Federal Court.

La grande première de Julian Alaphilippe — Tour de France
Au classement général, Greg Van Avermaet a eu la bonne idée de s'immiscer dans l'échappée du jour. Il a franchi le finish en 4e position, avec Serge Pauwels (Dimension Data).

Two other new moons were found to be part of a closer group that orbits in the prograde, or same direction as Jupiter's rotation.

The team is calling one of the new moons an "oddball" because of its unusual orbit.

The tiny moon is likely to be named Valetudo after the Roman god Jupiter's great-granddaughter, the goddess of health and hygiene.

Gareth Williams, an astronomer at the Harvard-Smithsonian Center for Astrophysics and director at the International Astronomical Union's Minor Planet Center, predicted that "there aren't any bigger objects undiscovered out there" around Jupiter. The new moons are faint, so researchers haven't been able to spot features on their surfaces or clues to what they're made of.

The survey looked for objects one kilometre and larger, so there is a chance that there are other, smaller "moonlets" in orbit around the giant Jupiter. But every so often, the planets seem to align (no pun intended) and a new discovery just falls right into their laps. In the meantime, they're waiting for the IAU to formally accept "Valetudo" as the name for the oddball moon. It crosses the orbits of other moons, and that's where things might get dicey.

These two groups of prograde and retrograde moons consist of "irregular" satellites, or moons whose orbits have irregular, or noncircular, shapes. Two of them go round in a prograde motion, in the same direction to Jupiter's spin.

They also have a retrograde orbit, or the opposite direction to the spin of Jupiter on its axis. Yet it's orbiting in the same direction as the planet, against the swarm's traffic.

The newly discovered moons await naming, a task for which the public may be enlisted, so it's a good idea to brush up on the IAU's naming rules for Jovian moons - and which names have already been taken.

Conseillé:



Populaire

Designer babies could be approved in future, says medical ethics panel
Additionally, changes made to an embryo's DNA means that all of its cells would be affected and passed down to future generations. They could, in theory, be used in assisted human reproduction to edit the DNA of an embryo before it is transferred to the womb.

Mission: Impossible - Fallout Stunts Featurette Shows All the Jumps
It was almost a decade later that the Tom Cruise-led Mission: Impossible feature film would turn the small screen spy series into a hugely-successful cinematic franchise.

Spider-Man: Far From Home Cast Adds Numan Acar
Smooth was added to Far From Home awhile back, and reports indicate the film's big villain could be played by Jake Gyllenhaal. Kevin Feige and Amy Pascal are producing the pic, which has a release date set for July 5, 2019.

Papa John’s founder: Stepping down as chairman a "mistake"
A special committee of the board of directors for Papa John's "kicked Schnatter out of his office" on Monday, according to CNN . John Schnatter resigned last week after publicly apologizing for using the slur during media training with a marketing agency.

Netflix Announces Full Slate of Millarworld Movies and TV Shows
Michael Bacall ( Scott Pilgrim vs. the World , 21 Jump Street ) is handling the script for this one. His neighbors return the favors by keeping his abilities a secret.

Washington saisit l'OMC sur les mesures de rétorsion de ses partenaires
L'ambassadeur canadien aux États-Unis, David MacNaughton, doit y comparaître jeudi. L'administration de Donald Trump soupèse toujours cette possibilité.

Woman impaled by beach umbrella in freak accident
Ricky Z wrote in a caption on his pictures: "Bruuuuh holy shit!" "It was a attractive day and a gust of wind blew the umbrella". Police say a woman from England was hospitalized after being impaled by a beach umbrella at the Jersey Shore Monday afternoon.

Brexit rebellion costs British PM May another minister
The commission has already put together a task force to prepare the member states for the consequences for a possible no deal. Britain's departure from the European Union is scheduled to begin in March, with the transition lasting through 2020.

Walmart, Microsoft take aim at Amazon with cloud tech
Cloud computing is Amazon's secret sauce, and its technology powers some of the most popular internet services . It is a strategic partnership with wider use of cloud and artificial intelligence technology.

Baltimore Orioles very close to Manny Machado trade, according to reports
Manny Machado may have a new team by the time the All-Star break is over, and his new home could be in the NL East. "No, no. Machado, 26, was drafted by the Orioles with the third overall pick in 2010 and has been a starter in Baltimore since 2012.