These are images of one of the new moons, named Valetudo.
Sheppard, Chad Trujillo of Northern Arizona University and David Tholen of the University of Hawaii are on a quest to find as many faint, distant objects on the edge of the solar system as they can.
Astronomers discover 12 new moons orbiting Jupiter - one on collision course with the others
But cosmic serendipity placed the moons in front of their telescope. "It is likely one of these spacecraft will fly by one of these distant Jupiter moons to get a close-up view". This proved to be quite helpful, as the unknown moons around Jupiter are small and dim.
"We're looking for new possible planets and dwarf planets in our solar system, just seeing what is out there", said Sheppard.
This Hubble telescope image of the giant planet Jupiter reveals the impact sites of two fragments from comet Shoemaker-Levy 9. Two of them have relatively close-in orbits, going in the same direction as Jupiter's spin.
Due to their sizes - just 0.6 to 1.9 miles (1 to 3km) in diameter - these moons are more influenced by surrounding gas and dust.
German GP: Sebastian Vettel has home win in his sights after pole
I think it's important to carry that momentum. "This is one of the worst tracks for overtaking, so I'll do what I can from there". Bottas had briefly held the provisional pole before Vettel's final effort secured the German a 55th career top starting slot.
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.
Explorers looking for a planet and discovered several celestial bodies.
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. Maybe a dwarf moon for anything that's one kilometer in size or smaller. Thus, they orbit in the same direction as the planet.
Suspect in 1988 killing of in girl, 8, appears in court
And in the intervening years, the killer - whose DNA was found on April's underwear - taunted cops and citizens with lurid notes. Court documents said that when police arrived at Miller's home Sunday, they asked him if he knew why they were there.
Our solar system is full of moons of many different kinds, just as diverse and wonderful as the planets they orbit.
Astronomers think retrograde moons have a different origin story from prograde moons, which travel in the same direction that their planet rotates. Each takes about two years to circle the planet. They are part of a larger swarm of moons orbiting a long distance out from Jupiter.
The effect of opposition is similar to the effect of the full moon seen once a month when Earth is positioned directly between our natural satellite and the sun.
With the moon's orbit set at an angle to the rest, this means that Valetudo doesn't take the riskiest path around Jupiter, but it does dive through the orbits of the retrograde moons, inviting a collision at some point. Those retrograde moons are then further grouped into three distinct sections.
Horrific video shows moments before duck boat capsizes on choppy Missouri lake
Some of the evidence will be taken back to Washington, D.C., for further analysis, according to an NTSB representative. The driver of the Ride the Ducks boat died, but the captain survived, Stone County Sheriff Doug Rader said.
With current technology, as well as the next generation of telescopes that will have even more capabilities, Sheppard believes that they could definitively say whether Planet Nine exists in the next few years.