Why Is PLUTO Not A Planet? | Dwarf Planet | Space Video | Dr Binocs Show | Peekaboo Kidz
Summary
TLDRThis script delves into the fascinating history and controversy surrounding Pluto's declassification from a planet to a dwarf planet. It explains the three criteria set by the International Astronomical Union (IAU) for celestial bodies to be considered planets and why Pluto failed to meet the third, leading to its reclassification. The video also introduces other dwarf planets like Eris, Haumea, and Makemake, and shares intriguing trivia about Pluto, such as its ice volcanoes and subsurface ocean.
Takeaways
- 📚 The script starts with a playful introduction to the topic of planets, specifically addressing Pluto's status.
- 🌟 Pluto was once considered the ninth planet in our solar system, but this changed in 2006.
- 🔍 The International Astronomical Union (IAU) reclassified Pluto as a 'dwarf planet' due to not meeting all criteria for a full planet status.
- 🌍 The IAU has three criteria for a celestial body to be considered a planet: orbiting the sun, being spherical, and clearing its orbit of other debris.
- 🚀 Pluto meets the first two criteria but fails the third due to the presence of other celestial bodies in its orbit, such as in the Kuiper Belt.
- 🧐 Other celestial bodies like Haumea and Makemake were also identified as dwarf planets, similar to Pluto.
- 🔎 The discovery of Eris, which is even larger than Pluto, further complicated the classification of celestial bodies in our solar system.
- 👧 The name 'Pluto' was suggested by an 11-year-old girl named Venetia Burney in 1930.
- 🌋 Pluto is unique for having ice volcanoes and a possible subsurface ocean.
- 📘 The reclassification of Pluto led to updates in educational materials and textbooks.
- 🌐 The script ends with a trivia fact and a sign-off from the host, Dr. Binox.
Q & A
What was the ultimate million-dollar question asked in the script?
-The ultimate million-dollar question was 'Which is the smallest planet in our solar system?'
Why was Pluto initially considered a planet?
-Pluto was initially considered a planet because it revolved around the Sun and was spherical in shape.
What event in 2006 changed Pluto's status from a planet to something else?
-In 2006, the International Astronomical Union (IAU) declared Pluto as not a planet, which changed its status.
What are the three essential criteria for a celestial body to be classified as a planet according to the IAU?
-The three essential criteria are: the object should revolve around the Sun, it should be spherical in shape, and it should have cleared the neighborhood around its orbit of other objects.
Why does Pluto not meet the third criterion for being a planet?
-Pluto does not meet the third criterion because it has not cleared the neighborhood objects around its orbit, as there are other celestial bodies in its vicinity.
What is the status of Pluto after it was reclassified by the IAU?
-After being reclassified, Pluto's status is that of a dwarf planet.
What are the names of the two planets found in the Kuiper belt similar to Pluto?
-The two planets found in the Kuiper belt similar to Pluto are Haumea and Makemake.
Which celestial body discovered in 2005 was bigger than Pluto?
-Eris was discovered in 2005 and was found to be bigger than Pluto.
Who suggested the name 'Pluto' for the celestial body discovered in 1930?
-Vanessa Bernie, an 11-year-old at the time, suggested the name 'Pluto'.
What unique features does Pluto have that are not common among other planets in the solar system?
-Pluto has unique features such as ice volcanoes and an ocean hidden under its icy surface.
What is the name of the presenter in the script, and what is their closing remark?
-The presenter's name is Dr. Binox, and their closing remark is 'until next time it's me, Dr. Binox zooming out, on never mind'.
Outlines
🚀 Pluto's Downgrade: The Million Dollar Question
This paragraph introduces the topic of Pluto's reclassification from a planet to a dwarf planet. It discusses the historical context of Pluto being considered the ninth planet and the confusion that arose when it was delisted in 2006. The script sets the stage for an exploration of the reasons behind this change, focusing on the criteria established by the International Astronomical Union (IAU) for what constitutes a planet.
📚 The IAU's Planetary Criteria and Pluto's Dilemma
This section delves into the three criteria set by the IAU for a celestial body to be classified as a planet. It explains that Pluto meets the first two criteria of orbiting the sun and being spherical but fails the third, which requires a planet to have cleared its orbit of other debris. The discovery of similar celestial bodies in the Kuiper Belt, such as Haumea and Makemake, and the larger object Eris, further complicates Pluto's status. The paragraph highlights the IAU's decision to reclassify Pluto as a dwarf planet based on these criteria.
🌌 The Kuiper Belt and Dwarf Planets
This paragraph discusses the discovery of other celestial bodies in the Kuiper Belt, like Haumea and Makemake, which share characteristics with Pluto but do not meet the IAU's criteria for planets. The script mentions the 2005 discovery of Eris, an object larger than Pluto, which also does not clear its orbit. These findings led to the IAU's classification system to differentiate between planets and dwarf planets, with Pluto and similar bodies being categorized as the latter.
🌟 Pluto Facts and the Episode Conclusion
The final paragraph wraps up the episode with some trivia about Pluto. It shares the historical fact that an 11-year-old girl, Venetia Burney, suggested the name 'Pluto' in 1930. The script also mentions unique features of Pluto, such as its ice volcanoes and a hidden ocean beneath its surface. The episode concludes with a sign-off from the host, Dr. Binox, promising more educational content in future episodes.
Mindmap
Keywords
💡Solar System
💡Pluto
💡International Astronomical Union (IAU)
💡Planetary Criteria
💡Dwarf Planet
💡Clyde Tombaugh
💡Kuiper Belt
💡Eris
💡Haumea and Makemake
💡Ice Volcanoes
💡Subsurface Ocean
Highlights
The smallest planet in our solar system is a subject of debate, with Pluto being a common misconception.
Pluto was delisted from its status as a planet, causing mass confusion about its identity.
Before 2006, Pluto was considered the ninth planet in our solar system.
Clyde Tombaugh, an American astronomer, discovered Pluto in 1930.
In August 2006, the International Astronomical Union (IAU) declared Pluto as not a planet.
For a celestial body to be considered a planet, it must fulfill three essential criteria set by the IAU.
Pluto meets the first two criteria of revolving around the Sun and being spherical in shape.
Pluto fails to meet the third criterion of clearing its orbit of other celestial bodies.
Pluto was downgraded to a dwarf planet due to its inability to clear its orbit.
Other celestial bodies in the Kuiper belt, like Haumea and Makemake, share Pluto's dwarf planet status.
Eris, discovered in 2005, is another dwarf planet that is even bigger than Pluto.
The IAU's checklist helps classify celestial bodies based on their ability to meet the three criteria.
Pluto and similar bodies fit the first two criteria but not the third, leading to their classification as dwarf planets.
Vanessa Bernie, at 11 years old, suggested the name 'Pluto' in 1930.
Pluto is unique in the solar system for having ice volcanoes.
An ocean is hidden under Pluto's icy surface, a feature not common to other planets.
The episode aims to educate viewers on the reclassification of Pluto and its unique characteristics.
Transcripts
[Music]
thank you are you ready for the ultimate
million dollar question little kitty
no tell me which is the smallest planet
in our solar system
well I'm sorry Kitty but Pluto is the
wrong answer
[Music]
well that's undoubtedly a million dollar
question hey friends a lot of us grew up
reading about the old nine planets but
later Pluto was delisted from its status
generating Mass confusion about its
identity so in today's episode let us
explore the reason behind Pluto's
planetary fate an answer of fascinating
question why is Pluto not a planet
anymore zoom in
until the Year 2005 every school science
book taught us that there are nine
planets namely Mercury Venus Earth Mars
Jupiter Saturn Uranus Neptune and of
course Pluto which was the smallest
amongst all
this Celestial body was discovered in
1930 by an American astronomer Clyde
tumble and since then everything was a
smooth sail for students across the
world
march on a warm day in August 2006 few
scientists gathered at the international
astronomical Union in Paris and
astounded the World by declaring Pluto
as lot of planet
after hearing this startling news the
educational unions took notes and
changed the matter in the textbooks but
the vital question is why did the
scientists Community take its title off
a planet away
well according to iau for a Celestial
body to be a planet it needs to fulfill
three essential criteria
first the object should revolve around
the sun second the object should be
spherical in shape and thirdly the area
around its of it should be clear and
should not have any equivalent or a
bigger Celestial body meaning with the
help of its Gravity the planet should
clear asteroids and dwarf planets out of
its way I know what you are thinking
isn't Pluto's spherical and revolves
around the Sun yes Pluto does fulfill
these two conditions but in the late 90s
space scientists found out that it
doesn't meet the third criteria as it
hasn't cleared the neighborhood objects
around its orbit because of which it
can't be called a planet and was
downgraded the status of Pluto to that
of a dwarf planet
but Pluto isn't the only one to be
called a dwarf planet yes in the Kuiper
belt near Pluto scientists found two
planets namely homia and Makemake which
were just like Pluto not only that but
in 2005 the Explorers also discovered
Eris which looked bigger than Pluto
itself all these newly found space
objects acted like Pluto but were
nowhere similar to other planets in the
solar system so that's when the iau came
up with a checklist to help them
classify a planet and according to it
Pluto and these other planets fit into
the first two criteria that is it
revolved around the Sun and was
spherical but they didn't meet the third
which stated that the area surrounding
it should be clear hence Pluto was out
of Team planet and landed on team's
dwarf planet
trivia time
did you know Vanessa Bernie just 11
years old at the time suggested the name
Pluto in 1930
also Pluto is the only planet in the
solar system with ice volcanoes and an
ocean hidden under its icy surface
hope you learned something new in
today's episode until next time it's me
Dr binox zooming out
on never mind
5.0 / 5 (0 votes)