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Archive for the tag “SciShow Space”

Planet 9 Might Be a Black Hole

In 2016, scientists proposed that our solar system is home to a ninth planet with an orbit beyond those of Neptune and Uranus. Known as Planet 9 and located in the farthest reaches of the solar system, it is a shocking 400 to 800 times farther from the Sun than Earth and it would take 15,000 years to complete one orbit. But in a recent stunning revelation, two scientists now believe that Planet 9 is not a planet at all but could actually be a tiny black hole. Learn more from SciShow Space.

New Dwarf Planet Found

For decades, an object orbiting the Sun between Mars and Jupiter was thought to be just another rock in the asteroid belt. Discovered in 1849, the object was named Hygiea and last week scientists announced that there’s a strong possibility that it qualifies as a dwarf planet. Get the scoop as SciShow Space fills in the details.

More Evidence of Planet 9

For more than a century, astronomers have searched the galaxy for a ninth planet, one they refer to as Planet 9, or a super Earth. Recent evidence suggests the planet lies beyond Neptune and is much larger than Earth. Problem is, it’s way out there–about 80 times farther from the Sun than Earth. SciShow Space host Reid Reimers fills in the details.

The Forbidden Planet

Planets similar to the size of Neptune don’t orbit too closely to their stars because they would lose their atmospheres. But scientists recently discovered an exoplanet 900 light years away, a bit smaller than Neptune with 20 masses of Earth orbiting super close to its star, or sun. The unusual circumstances surrounding the planet led scientists to dub their new find, The Forbidden Planet, and gave them hope to understanding how solar systems evolved. The research also bodes well to discovering successful techniques for exploring and eventually colonizing Mars. Find out more in this episode of SciShow Space.

The Mysteries Of Pluto

The success of the New Verizons Probe’s Pluto flyby has already provided us with more information about the dwarf planet and its largest moon, Charon, than in the past 85 years. “From what we’ve seen so far, at least one thing is for sure, we’re going to have to completely change the way we think about planetary geology,” says Reid Reimers. He divulges the details in this edition of SciShow Space.

Size Isn’t Everything

Astronomers at Georgia State University say they have discovered what may well be the smallest star in the universe. The star is 8.6 percent as wide as the our star, the sun, 8,000 times dimmer and can actually fit inside the planet Jupiter. Phil Plait of badastronomy.com explains how astronomers determined the star’s status, including mistaking it for a brown dwarf in the early stages of their research, in this edition of SciShow Space.

Loners Of the Universe

Rogue planets, young, large celestial bodies that aren’t tethered to any star, are the latest discoveries in our vast universe. Caitlin Hofmeister, of SciShow Space tells us that astronomers believe there may be 50 percent more of these free agents than normal planets. Listen in as Hofmeister explains how we found them and how they were formed.

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