• Latest
  • Trending
  • All
  • News
  • Business
  • Politics
  • Science
  • World
  • Lifestyle
  • Tech
Pluto’s atmosphere is starting to disappear, scientists find

Pluto’s atmosphere is starting to disappear, scientists find

Tháng Mười 10, 2021
selena gomez t shirt amazon

Selena Gomez Merch on Amazon You Need to Check Out

Tháng Tư 8, 2022
john wayne youtube movies

Ediciones anteriores

Tháng Tư 7, 2022
clint eastwood youtube

One Of Clint Eastwoods Greatest Movies Is Now Free On YouTube

Tháng Tư 7, 2022
Google&39s Removed Over 31,000 Chinese YouTube Channels for Coordinated Influence Operations in the Last 7 Months

Google&39s Removed Over 31,000 Chinese YouTube Channels for Coordinated Influence Operations in the Last 7 Months

Tháng Ba 30, 2022
Selena Gomez : Wiki, Biography, Age, Family, Career, Net Worth,  Boyfriend, and More 

Selena Gomez : Wiki, Biography, Age, Family, Career, Net Worth,  Boyfriend, and More 

Tháng Ba 8, 2022
spacex youtube channel

10 YouTubers To Follow To Get The Latest SpaceX News

Tháng Ba 8, 2022
Elon Musk’s ‘SNL’ Debut Set To Get a Global YouTube Livestream

Elon Musk’s ‘SNL’ Debut Set To Get a Global YouTube Livestream

Tháng Ba 7, 2022
selena gomez personality

Selena Gomez Personality Type, Zodiac Sign & Enneagram

Tháng Ba 7, 2022
filmy z selena gomez

Filmy z Seleną Gomez – 10 tytułów, przy których nie będziesz się nudzić

Tháng Ba 7, 2022
kim kardashian vma 2021

Met Gala 2021: Kim Kardashian leads the return of fetish facewear

Tháng Ba 6, 2022
selena gomez disease

Selena Gomez Opens Up About Shocking ‘Life-Or-Death’ Lupus Diagnosis

Tháng Ba 6, 2022
The Magnificent Seven

The Magnificent Seven

Tháng Ba 6, 2022
Thứ Năm, Tháng Năm 19, 2022
  • Login
Daypg.com - Breaking News - Latest World - Donald Trump - SpaceX
  • HOME
  • NEWS
    • WORLD
    • BUSINESS
    • POLITICS
    • SCIENCE
  • DONALD TRUMP JR
  • SPACEX
  • LIFESTYLE
    • BEAUTIFY
    • FASHION
    • FOOD
    • HEALTH
    • TRAVEL
  • TECH
    • APPLE
    • GEAR
    • MOBILE
    • STARTUP
  • VIDEOS
  • ENTERTAINMENT
    • GAMING
    • MOVIE
    • MUSIC
    • SPORTS
  • REVIEWS
No Result
View All Result
  • HOME
  • NEWS
    • WORLD
    • BUSINESS
    • POLITICS
    • SCIENCE
  • DONALD TRUMP JR
  • SPACEX
  • LIFESTYLE
    • BEAUTIFY
    • FASHION
    • FOOD
    • HEALTH
    • TRAVEL
  • TECH
    • APPLE
    • GEAR
    • MOBILE
    • STARTUP
  • VIDEOS
  • ENTERTAINMENT
    • GAMING
    • MOVIE
    • MUSIC
    • SPORTS
  • REVIEWS
No Result
View All Result
Daypg.com - Breaking News - Latest World - Donald Trump - SpaceX
No Result
View All Result
Home Spacex

Pluto’s atmosphere is starting to disappear, scientists find

by Black Black
Tháng Mười 10, 2021
in Spacex
0
Pluto’s atmosphere is starting to disappear, scientists find
495
SHARES
1.4k
VIEWS
Share on FacebookShare on Twitter

Pluto’s atmosphere is going through a strange transformation, scientists are finding.

The icy dwarf planet, which lies over 3 billion miles (4.8 billion kilometers) away from Earth in the Kuiper Belt, caught astronomers’ attention as it passed in front of a star back in 2018.

With the star backlighting Pluto, the team of researchers was able to make observations of the dwarf planet and its atmosphere. With this unique view, they came to a surprising conclusion, which they describe in a new study. Using telescopes at multiple sites in both the U.S. and Mexico, the team observed Pluto and its thin atmosphere, which is primarily made of nitrogen, like that of Earth. Pluto’s atmosphere is supported by the vapor pressure of ices on the dwarf planet’s surface. So, if ice warms up on Pluto, it can dramatically alter the density of its atmosphere, according to a statement from Southwest Research Institute (SwRI), the home institution of multiple members of the research team.


For about 25 years, Pluto has been moving farther and farther away from the sun, so its surface temperature has been going down. And with these recent observations, the researchers found evidence showing that Pluto’s atmosphere is actually refreezing back onto its surface as the dwarf planet gets colder and colder. Pluto is so far from the sun that, as time goes on, it will get distinctly farther away (and colder) before getting closer to the sun in other regions of its immense orbit.

Thanks to a phenomenon known as thermal inertia, Pluto’ssurface pressure and atmospheric density continued to rise until 2018. Essentially, Pluto had residual heat from when it was closer to the sun. However, the inertia starting to wear off and, as Pluto gets colder, more and more of its atmosphere will freeze back onto its surface and “disappear.”

“An analogy to this is the way the sun heats up sand on a beach,” SwRI staff scientist Leslie Young, who studies the interaction between icy solar system bodies and their surfaces and atmospheres, said in the same statement.

“Sunlight is most intense at high noon, but the sand then continues soaking up the heat over the course of the afternoon, so it is hottest in the late afternoon. The continued persistence of Pluto’s atmosphere suggests that nitrogen ice reservoirs on Pluto’s surface were kept warm by stored heat under the surface. The new data suggests they are starting to cool,” Young said.

So how did they figure this out just by watching Pluto move in front of a star?The researchers watched the star fade as Pluto moved in front of it and then come back into view once the dwarf planet had passed. Using the rate that the star came in and out of view, a transition that lasted about 2 minutes, they were able to determine the density of the dwarf planet’s atmosphere, according to the statement.

Vì sao Sao Diêm Vương không còn là hành tinh thuộc Hệ Mặt Trời?

This method relies upon what is known as an “occultation,” an event that happens when one cosmic object is hidden by another passing in front of it. Studying occultations is an old and well-worn technique in the world of astronomy, and researchers have used it to study Pluto’s atmosphere since 1988, Eliot Young, a SwRI senior program manager, said in the statement.

“The New Horizons mission obtained an excellent density profile from its 2015 flyby, consistent with Pluto’s bulk atmosphere doubling every decade, but our 2018 observations do not show that trend continuing from 2015,” Young added, referring to the pioneering NASA mission that gave the world its first up-close look at Pluto..

In observing Pluto as it passed in front of the star, the team noticed a “central flash” in the middle of the path of the dwarf planet’s shadow. The flash, caused by Pluto’s atmosphere refracting light into the center of the shadow, changed the light curve that usually happens during occultation from a “u-shape” into a “w-shape.”

“The central flash seen in 2018 was by far the strongest that anyone has ever seen in a Pluto occultation,” Young said. “The central flash gives us very accurate knowledge of Pluto’s shadow path on the Earth.”

Young discussed the results of this study Oct. 4 at the 53rd American Astronomical Society Division for Planetary Sciences Annual Meeting.

Danh mục: Spacex

Nguồn: https://daypg.com
Share198Tweet124Share50
Black Black

Black Black

Plugin Install : Widget Tab Post needs JNews - View Counter to be installed
  • Trending
  • Comments
  • Latest
UAE announces Mars probe results that surprise scientists: oxygen levels in the Red Planet’s atmosphere are higher than expected!

UAE announces Mars probe results that surprise scientists: oxygen levels in the Red Planet’s atmosphere are higher than expected!

Tháng Mười Một 7, 2021
Clint Eastwood’s Wife of 18 Years Dina Married Her Friend with Whose Ex-wife the Actor Cheated

Clint Eastwood’s Wife of 18 Years Dina Married Her Friend with Whose Ex-wife the Actor Cheated

Tháng Mười Hai 4, 2021
12 Great Facts About The Good, The Bad and The Ugly

12 Great Facts About The Good, The Bad and The Ugly

Tháng Mười Một 21, 2021
selena gomez t shirt amazon

Selena Gomez Merch on Amazon You Need to Check Out

0

Lady Gaga Pulled Off One of the Best Halftime Shows Ever

0

Barack Obama’s Now Mainly Focusing on Wearing This Casual Backwards Hat

0
selena gomez t shirt amazon

Selena Gomez Merch on Amazon You Need to Check Out

Tháng Tư 8, 2022
john wayne youtube movies

Ediciones anteriores

Tháng Tư 7, 2022
clint eastwood youtube

One Of Clint Eastwoods Greatest Movies Is Now Free On YouTube

Tháng Tư 7, 2022
Daypg.com - Breaking News - Latest World - Donald Trump - SpaceX

Copyright © 2017 Daypg.com.

Information

  • About
  • Advertise
  • Privacy & Policy
  • Contact

Follow Us

No Result
View All Result
  • HOME
  • NEWS
    • WORLD
    • BUSINESS
    • POLITICS
    • SCIENCE
  • DONALD TRUMP JR
  • SPACEX
  • LIFESTYLE
    • BEAUTIFY
    • FASHION
    • FOOD
    • HEALTH
    • TRAVEL
  • TECH
    • APPLE
    • GEAR
    • MOBILE
    • STARTUP
  • VIDEOS
  • ENTERTAINMENT
    • GAMING
    • MOVIE
    • MUSIC
    • SPORTS
  • REVIEWS

Copyright © 2017 Daypg.com.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In