Arizona State University astronomers reported this week that the strange 148-foot (45-meter) object that appears to be made of frozen nitrogen, just like the surface of Pluto and Neptune's largest moon Triton.
The study's authors, Alan Jackson and Steven Desch, think an impact knocked a chunk off an icy nitrogen-covered planet 500 million years ago and sent the piece tumbling out of its own star system, toward ours. The reddish remnant is believed to be a sliver of its original self, its outer layers evaporated by cosmic radiation and, more recently, the sun.
This may worth something:
'The Hunt for Planet B' Review | Hollywood Reporter
Decades in the making, this massive, ambitious and logistically daunting space scheme sounds like something hatched from the mind of Isaac Asimov or Arthur C. Clarke. And yet it's very much the real thing in director Nathaniel Kahn's latest documentary, The Hunt for Planet B , which focuses on both the science behind the Webb telescope and the team of scientists, many of them women, making it happen.
For a subject that can seem impenetrable for anyone who's not an astrophysicist from Stanford or MIT, Kahn's film is extremely down-to-earth. It renders the project's colossal scope — the Webb will be rocketed almost a million miles into space, using infrared sensors to detect radiation emitted by stars and planets thousands of light years away — graspable.
Models show Earth's heat loss is higher on one side of the planet
Prior research efforts looking into Earth's heat loss were only able to go back in time approximately 240 million years. In this new effort, the researchers were able to create models showing the geography of the Earth going back 400 million years ago. Over that time, the continents have shifted quite dramatically, from supercontinents to the arrangement that exists today. To make their model, the researchers started by calculating how much heat has been lost over their period of study.
The model showed that more heat was escaping from the parts of the planet that were covered with large oceans, specifically the Pacific Ocean. They found that if they cut the planet in half at the 60 degree longitude line, the half of the planet that consists mainly of the Pacific Ocean allowed much more heat to escape than the hemisphere that includes Africa, Europe and Asia.
Star Wars: 10 Planets We Want To See In A Future Show Or Film
Now that numerous TV shows are being produced, it seems inevitable that classic planets will soon be returning. Of course, fans don't want these planets to just be shoehorned in, It has to make sense within the context of the story. But the fantastic filmmakers of Star Wars TV like Dave Filoni and Jon Favreau are sure to get it right.
This watery planet was at the heart of a big mystery in Attack of the Clones . Obi-Wan Kenobi visited this planet to find that the elegant Kaminoans were building a secret clone army for the Republic. Millions of clones of Jango Fett were made here at Tipoca City.
While you're here, how about this:
There might be many planets with water-rich atmospheres | University of Chicago News
However, a new study by University of Chicago and Stanford University researchers suggests a mechanism whereby these planets could not only develop atmospheres full of water vapor, but keep them for long stretches. Published March 15 in the Astrophysical Journal Letters , the research expands our picture of planetary formation and could help direct the search for habitable worlds in other star systems.
"Our model is saying that these hot, rocky exoplanets should have a water-dominated atmosphere at some stage, and for some planets, it may be quite a long time," said Asst. Prof. Edwin Kite, an expert in how planetary atmospheres evolve over time.
Mars is first inner planet after Earth to have core measured | Fox News
The spacecraft launched in May 2018 and successfully landed on the red planet in November of that year.
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InSight -- which is short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport -- was created to study the early evolution of terrestrial planets including the interior structure of Mars.
The lander also calculates and quantifies tectonic activity and meteorite impacts on the planet and reached its current findings by examining seismic energy in Mars' interior or "marsquakes."
Planet's health: 'Financial muscle' | The Seattle Times
A public financial cooperative envisioned in Senate Bill 5188, recently passed by the Senate, will create a new financial tool for lending to local governments for infrastructure projects, including green construction and refitting older buildings. This cooperative can partner with local banks to increase private lending for green buildings.
The House in Olympia has taken up the bill. If passed, it will be a vital step toward reducing carbon emissions. It well deserves to become law.
Some planets can be hotter than stars – and scientists have now started to unravel their mystery
Until the early 2000s, the only known planets were located in our own neighbourhood, the Solar System. They broadly form two categories: the small rocky planets in the inner Solar System and the cold gaseous planets located in the outer part.
We are still struggling to explain how planets form and how elements, such as water, were delivered to our own Solar System. To find out, we need to learn more about exoplanet compositions by observing their atmospheres.
Happening on Twitter
A new study says the mystery object is likely a remnant of a Pluto-like world and shaped like a cookie.… https://t.co/0R94wivxF5 CP24 (from Toronto) Wed Mar 17 19:59:08 +0000 2021
First interstellar object likely cookie-shaped shard from Pluto-like world https://t.co/fBbV9Xg19k https://t.co/h7BUQ7M6Lh nypost (from New York, NY) Thu Mar 18 16:30:22 +0000 2021
Makafat e Amal... close but no cigar. 8 rejected votes. I hope PDM senators weren't shown @ahaidergilani86 video as… https://t.co/sUyAGvyPV0 ZainHQ (from Pakistan) Fri Mar 12 13:04:41 +0000 2021
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