We're writing about it because these moons of moons are called "moonmoons".
In a paper now up on pre-print resource arXiv, astronomers Juna Kollmeier of the Carnegie Institution for Science and Sean Raymond of the Laboratoire d'Astrophysique de Bordeaux have called them submoons.
Bottom-line, if there is such thing as a moonmoon, it would only exist around larger moons.
The mere possibility of them, and their absence from where we might expect to see them "provides important clues to the formation mechanisms and histories of" solar systems. But the setup would be tricky: A moonmoon would need to sit in a "Goldilocks zone" close enough to remain gravitationally bound to its host moon instead of the planet, but far enough away to not get drawn in by the host's gravitational force, the researchers report this week on the arXiv preprint server. According to scientists, "subline" can remain stable if its dimensions are small (on the order of ten kilometers in radius), and her "mother" satellite, on the contrary, massive enough (at least 1000 miles) and rotates at a great distance from its planet. It turns out that several moons in our own solar system fit the bill and could host submoons, including Titan and Iapetus, which orbit Saturn, and Callisto, which orbits Jupiter.
But there's still one really key ingredient.
Sarah Laskow at Atlas Obscura explains that moonmoon is catching on because there's something pleasing about "recursive places", like islands within islands, volcanoes within volcanoes and rivers running through a sea.
Michael Buble Says He's Retiring from Music Career
The "Beautiful Day" singer has talked before about ending his music career during his son's illness. "My wife was... In February past year , Michael released a statement to confirm that Noah had progressed well following treatment.
And then that delicate gravitational balance would have to be maintained.
There are specific conditions for a moon to be able to capture its own moon. Just not as exciting as calling them "moonmoons". However, the New Scientist made a decision to call them "moonmoons".
And, given the difficulty in detecting even a moon outside the Solar System, our chances of spotting an exomoonmoon are, for the time being, pretty much zero. It's submoons, but NewScientist's Leah Carey has a better idea: moonmoons.
A few years ago, an astronomer's son asked the type of question only kids and genius astrophysicists come up with: Can a moon have a moon?
"Further studies of the potential formation mechanisms, long-term dynamical survival, and detectability of submoons is encouraged", Kollimeier concludes in the two-page paper.
Alex Cora rarely gets animated during games, but you always should expect the unexpected once October baseball rolls around. Down 2-0, the Boston Red Sox were able to tie things up at 2-2 on a bases-loaded walk and a Justin Verlander wild pitch.
Mega Millions officials say no tickets matched all six numbers to claim the estimated $548 million grand prize. The $548 million prize in Friday's drawing refers to the annuity option, which is awarded in 30 payouts.
Microsoft recommends uninstalling the offending driver in order to fix the problem, and has provided a useful guide here . The issue appears to be the wrong audio driver being installed, with fortunately only a small number of users affected.
Chandra is created to make X-ray observations of distant space features, including quasars, supernovas and black holes. In a statement October 12, NASA said the Chandra X-Ray Observatory entered a safe mode on the morning of October 10.
Freshman Romeo Langford answers a question on how he's enjoying being on campus so far during IU media day on September 26. My All-Big Ten team matched the consensus, and I believe Langford will be the conference's most impressive freshman.
Jesus ended his worldwide goal drought as Brazil defeated 10-man Saudi Arabia 2-0 in an global friendly in Riyadh on Friday. The Argentines beat Iraq 4-0 on Thursday to extend their unbeaten run since the World Cup to three games.
Facebook video taken in the immediate aftermath of the incident shows the woman calling the police outside the store. She originally said that while she was at the counter, a young black boy touched her rear end as he was leaving.
Among the many interesting tidbits, Cashman addressed, was that he believes Sonny Gray is best served to pitch elsewhere. Following the Yankees elimination from the ALDS - Gray, himself, admitted he is unsure what the future holds.
After van Dijk's opener, the Dutch had chances to double their lead but Georginio Wijnaldum shot wide and Depay headed off target. The result spoiled a record-setting day for Joachim Low, who claimed the record for most ever matches in charge of Germany .
The insurgent group has been calling for direct talks with the US , blaming Washington for starting the Afghan war. Taliban officials want the withdrawal of American forces and a government in Kabul that reflects the group's view.
A fresh glance at automotive world
The unit can store 13.5 kWh, and at full charge on electric mode, the S-Class PHEV has up to 50 km electric range. The system will prompt the driver to intervene if the auto encounters a scenario it can not navigate.
Win For Brewers Means Free Beer For Milwaukee
It doled out nearly 170,000 freebies then as the Crew began its season 13-0 (it missed the playoffs that year, though). The only other time the Webb chain has had to follow through was in 1987.
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Tesla says there's still time to get $7,500 tax credit
In the third quarter , Tesla says it delivered 83,500 vehicles, 80% more than the company delivered in all of 2017. At the end of June, Tesla was scrambling to meet its self-imposed goal to manufacture 5,000 Model 3 cars per week.
Voracek's 5-point night propels Flyers past Senators
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Seeded Svitolina reached Hong Kong Open quarterfinals
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