Are you Trying to Suggest that Jupiter Migrates?

Jupiter likely formed in the outer reaches of the Solar System, and migrated inward to its current position billions of years ago, according to new computer simulations from Lund University in Sweden. Two groups of asteroids, called Trojans, follow the giant planet in its journey around the Sun. The distribution of these bodies can only be explained if Jupiter was once four times more distant from the Sun than it is today, researchers discovered. In 2021, NASA will launch the Lucy mission to the Trojan asteroids, in order to learn more about the ancient Solar System.

Read More Are you Trying to Suggest that Jupiter Migrates?
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OSIRIS-REx Reveals Secrets of Bennu — The Doomed Asteroid

The spacecraft OSIRIS-REx has reveled a wealth of new information about Bennu, a large, ancient asteroid. On March 19th, researchers released a wide range of scientific papers, providing a new look at this diamond-shaped body. New data shows Bennu is covered in massive boulders, which could hinder the spacecraft from gathering materials from the surface. Researchers have also spotted evidence water once existed on the body from which Bennu broke free. Gravity on the asteroid was also found to act in a strange manner, causing anything just outside its equator to be pulled toward the center of the asteroid, and shot into space.

Read More OSIRIS-REx Reveals Secrets of Bennu — The Doomed Asteroid

New Images of Mars from the ExoMars Orbiter Features Photo of InSight Lander Seen from Space

The ExoMars Trace Gas Orbiter has taken a wealth of new photographs of the Martian surface, including one showing the InSight lander, which recently touched down on the Red Planet. The images show the great geological diversity of Mars, as well as dunes and evidence of dust devils on the planet. Researchers hope to utilize these photographs during planning for future robotic missions.

Read More New Images of Mars from the ExoMars Orbiter Features Photo of InSight Lander Seen from Space

What a Dusty Solar System We Have! Here’s What Astronomers Found Hiding in the Mess

For several years, astronomers have known that rings of dust follow the planets Earth and Venus in their journeys around the Sun. Researchers have now found a similar ring of dust also accompanies Mercury in its orbit, much to the surprise of astronomers, who believed any system like this would be driven away by the Sun. Our own ring is produced by collisions between bodies in the asteroid belt between Mars and Jupiter, but computer simulations have shown the ring bonded with Venus is likely the result of a previously-unknown asteroid belt around the orbit of that planet.

Read More What a Dusty Solar System We Have! Here’s What Astronomers Found Hiding in the Mess

Water Seen Hopping Around the Surface of the Moon

The Moon was once thought to be a barren place, devoid of all water. But, in the last few years, several spacecraft have found water ice hidden within craters on our planetary companion. Now, the Lunar Reconnaissance Orbiter has found evidence that molecules of water are bouncing around the lunar surface. As ice is heated in one area, it moves to another nearby place, where it falls into shadow, and freezes once more on the surface of the Moon. Water will be a vital resource as humans populate the Solar System, and the Moon may be the first stopping-off point on the way to the planets.

Read More Water Seen Hopping Around the Surface of the Moon

Want to Blow Up an Asteroid? It’s Harder than You Think

Science fiction is filled with stories of astronauts blowing up asteroids just before they strike the Earth. But, doing so could be even worse than doing nothing, as fragments of these bodies could impact the Earth in multiple locations, like a shotgun blast. Now, new research from Johns Hopkins University shows even attempting to blow up an asteroid might prove futile. Computer models of impacts between two asteroids show that such events would likely result in short-term fragmenting of the bodies, but these pieces would come together again within hours, recreating a mass much like the original asteroid. Researchers are on the lookout for asteroids and comets heading toward the Earth that could endanger areas from small cities to the entire planet.

Read More Want to Blow Up an Asteroid? It’s Harder than You Think

The Big Mystery of the Kuiper Belt — a Lack of Small Objects

The Kuiper Belt contains few small bodies, according to a new report from the Southwest Research Institute. This collection of rocks and ice surrounds our planetary system like a massive doughnut, larger than the orbit of Neptune. Photographs taken of Pluto and its largest moon, Charon, show few craters, suggesting that the Kuiper Belt, in which Pluto resides, contains few small objects, less than a mile in diameter. Researchers are uncertain why the grouping contains so few small bodies.

Read More The Big Mystery of the Kuiper Belt — a Lack of Small Objects

The Reasons We May Soon Find Planet Nine

Since 2016, astronomers have been searching for a ninth planet some researchers believe may be hiding at the edge of our family of planets. The orbits of some trans-Neptunian objects, or TNO’s, suggest that another planet is waiting out there to be discovered. Astronomers at the University of Michigan recently released a study suggesting that such a world will likely be found, or ruled out, in the next 10 to 15 years, as new observatories come online. Pluto was once considered to be the ninth planet, by was re-designated as a dwarf planet in 2006.

Read More The Reasons We May Soon Find Planet Nine

Hubble Reveals Origins of Hippocamp — The Tiny Moon of Neptune that Shouldn’t Be There

Hippocamp is one of the smallest, and darkest, moons of Neptune. Known to astronomers as “The Moon that Shouldn’t be There,” it orbits the giant planet at a distance so close to the larger moon of Proteus that it should have already been destroyed. Researchers using the Hubble Space Telescope have now concluded that this tiny satellite, just 20 miles in diameter, broke off of its larger neighbor billions of years ago, following an impact with a comet. When Voyager 2 visited Neptune in 1989, it photographed a massive impact crater on Proteus, which is likely evidence of this ancient collision.

Read More Hubble Reveals Origins of Hippocamp — The Tiny Moon of Neptune that Shouldn’t Be There

Water Could Form on the Surface of the Moon, Thanks to the Solar Wind

The Moon was once thought to be completely dry and barren. In recent years, however, a number of spacecraft have revealed evidence for water ice in craters near the lunar poles. Most astronomers believed this ice was placed there through collisions with water-rich comets. A new study from NASA now shows that the solar wind, a stream of charged particles emanating from the Sun, can interact with materials on the lunar surface, producing water. Supplies of water will be essential for the human exploration of the solar system.

Read More Water Could Form on the Surface of the Moon, Thanks to the Solar Wind