The orrery shows it all. Everything orbits around the sun (which we knew a lot earlier than most think. Geocentric beliefs were kind of always pseudo science).
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A barycenter is the point in any system around which the objects in the system orbit. So, the barycenter for the Earth and the Moon is…
…you guessed it. Not exactly the Earth. Now, because the Earth is considerably larger, the barycenter is inside the Earth. It's not, however, the center of the Earth.
This may worth something:
Neighborhood tour: Visiting other planets in our Solar System | The Spokesman-Review
•Pluto isn't just covered with ice, it's covered with four types of ice: methane, nitrogen, carbon monoxide and water. Each goes through its own precipitation cycle.
•Pluto has an ionized tail like a comet – probably from nitrogen in its atmosphere leaking into the solar wind – up to 500 tons every hour. The tail extends for tens of thousands of miles.
There are all sorts of amazing things to know about our solar system and many more surprises out there to be discovered. The main obstacle: funding.
Comet NEOWISE makes close pass by Earth into the inner solar system - CentralMaine.com
A celestial visitor to the inner solar system discovered by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer mission is giving people in central Maine a good look at a comet for several days before it takes off into the distance, not to return for 6,800 years.
The comet has been named after its discoverer, NEOWISE, which uses a repurposed astronomical space telescope to detect and track near-Earth objects such as asteroids and comets, according to the space agency’s website. Several objects the system has detected have been labeled PHAs, potentially hazardous asteroids.
Mapping the solar system: from the moon to Bennu
"This is the finest spatial scale we've ever mapped of a planetary object," said Daniella DellaGiustina, OSIRIS-REx image processing lead scientist. "It's also unprecedented in the way we used it. Typically, when NASA chooses a landing site for an upcoming mission, they have an orbiter doing reconnaissance of the surface long before a separate mission contacts the surface. But we went to Bennu without that luxury.
The spacecraft collected the images at distances ranging from 2.2 to 2.9 miles above the asteroid's surface between March 21 and April 11, 2019. The mosaic was completed in February.
This may worth something:
Closest Pictures Ever Taken of Sun Show Tiny Campfire Flares - The New York Times
The first images from a new solar mission — the closest ever taken of the sun — reveal a ubiquitous burbling of miniature solar flares. The discovery may provide clues for how turbulence heats the atmosphere of the sun and drives the ebb and flow of solar wind, the high-velocity charged particles throughout the solar system that buffet Earth and the other planets.
"We've never been closer to the sun with a camera," Daniel Müller, the project scientist for the mission, Solar Orbiter, said during a news conference held on Thursday by the European Space Agency. "And this is just the beginning of the long epic journey of Solar Orbiter."
Alien asteroid: Astronomers identify space rocks 'of interstellar origin' in Solar
"The stars were close enough to each other to foster strong gravitational interactions that led to an exchange of material among the systems.
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"Until recently, however, we couldn't distinguish between captured interstellar objects and objects that formed around the Sun.
The first identification to which Professor Morais referred was the asteroid 514107 Ka'epaoka'awela, as reported by the São Paulo Research Foundation (FAPESP) in 2018.
Visit Our Solar System's Moons With an Interactive Atlas - Nerdist
Our solar system includes over 200 known moons . And you can virtually visit some of the most important ones with The Atlas of Moons (which we first heard about at Boing Boing ). The interactive site lets users explore a few of “the most mystifying or scientifically intriguing—places in our local neighborhood.”
The locales included on the site, covering our neck of the galactic wilderness all the way out to Pluto , come with tons of details about all of the moons in that area. There are also complete orbital paths for all planets’ moons.
To find giant black holes, start with our solar system's center | Space | EarthSky
A new study from researchers at Vanderbilt University suggests that to find the most massive black holes, measure the effects of their gravitational waves on the flashes of light coming from pulsars. The best location to do that is at the precise gravitational center of the solar system.
Artist’s concept of an array of pulsars, used in a system to find black holes with billions of times our sun’s mass. The best place to start? One idea is to use the gravitational center of our solar system. Image via David Champion/ Vanderbilt University .
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