Big Bang Day

Categories:: Special Interest
Tags:: Education Historical Technology
Where:: United States
Date change rule:: Every March 21
Holiday emoji:: 🔭

Big Bang Day lights up the calendar every March 21, marking the anniversary of the Planck Collaboration’s groundbreaking all-sky map. This pivotal discovery confirmed the standard model of cosmology, deepening our understanding of the universe. Join fellow space enthusiasts to explore cosmic mysteries, engage in scientific discussions, and look up at the stars.

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History
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FAQs
Importance
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Expected Big Bang Day Deals

Big Bang Day is an opportune moment for educational institutions and science-focused brands to engage the public. While we await official 2027 programs, history shows science museums and planetariums often offer special exhibits or discounted entry. Online retailers like Amazon and Barnes & Noble may feature sales on astronomy books, telescopes, and space-themed educational toys. Companies like Celestron or Meade Instruments could offer promotions on their telescopes and accessories. Educational platforms such as Coursera or edX might highlight cosmology courses. We will update this page with confirmed live deals as March 21 approaches.

Platform Guide for Big Bang Day

X/Twitter

Mention @NatlToday and use #BigBangDay. Share fascinating facts about the universe, recent space discoveries, or engage in discussions with astrophysicists and enthusiasts.

YouTube

Subscribe to @NationalToday for holiday video content. Create short documentaries, animated explanations of cosmic theories, or interviews with experts on the Big Bang.

Tag National Today (linkedin.com/company/nationaltoday) and use #BigBangDay. Professionals in STEM fields can share insights on cosmology, career paths in astrophysics, or discuss the impact of the Planck mission.

Big Bang Day Hero

Georges Lemaître

Georges Lemaître (1894–1966) was a Belgian Catholic priest, astronomer, and professor of physics. He is credited with proposing the theory of the expansion of the universe, which later became known as the Big Bang theory. His work, initially published in 1927, laid the theoretical foundation for modern cosmology, suggesting that the universe began from a primordial atom.

History of Big Bang Day

On March 21, 2013, over 15 months of observation came to fruition when the European Space Agency (E.S.A.) released an all-sky map that traced the oldest existing light in the Universe. The news of the discovery sent waves of awe and inspiration across the world, and the first Big Bang Day was celebrated by enthusiasts of space discovery. The day marks the turning point in our study of the Big Bang Theory, forever changing the cosmic calendar and the realm of inter-terrestrial discovery.

Big Bang Day is named after the Big Bang, the great cosmic event that created the world. The Big Bang Theory states that the formation of our universe is a result of an explosion that began with a single hot and dense point and reverberated through the end of time. According to the theory, the cosmos is still expanding, meaning we are still in the aftermath of the event that took place billions of years ago. The newfound Planck data set new values for the speed at which the universe is expanding right now. The Hubble constant changed the set value in astronomy and concluded that the Universe is 13.82 billion years old.

Since 2013, the day has been marked with celebratory gatherings, stretching from Jakarta, Beirut, and New Orleans, all the way to Amsterdam and Rio. Black Hole-themed parties are thrown in honor of the Big Bang, and performances are delivered by the invitees. Hundreds of distinguished professionals deliver lectures, educating people about the developments in space.

Big Bang Day timeline

1931

Awareness of the Phenomenon Begins

Belgian priest Georges Lemaître proposes the theory of an “explosion” that gave birth to the Universe, articulating the Big Bang for the first time.

1964

The First Affirmation

Several competing theories about the formation of the universe, including the Steady State, are laid to rest as Big Bang gains the general consensus for the first time.

2001

NASA Takes the Lead

NASA reaffirms the Big Bang by getting pictures of the universe that feature the cosmic background radiation through the WMAP spacecraft.

2013

The Measurement of a Planck Scale

The initial Planck measurements, extracted by the E.S.A., trace the oldest-existing light in the universe.

Big Bang Day FAQs

When is Big Bang Day?

In 2027, Big Bang Day will be observed on Sunday, March 21. It’s a perfect opportunity to dedicate the weekend to learning about cosmology and the fascinating history of the cosmos.

What is the Planck Collaboration?

Comprising hundreds of scientists from across Europe, the U.S., and Canada, the Planck Collaboration produced the most accurate and detailed map of the early universe. Their data provided strong support for the Lambda-CDM model of cosmology and refined our understanding of the universe’s age and composition.

How old is the universe according to the Big Bang theory?

The current scientific consensus, largely supported by Planck data, places the age of the universe at about 13.8 billion years. This figure is a cornerstone of modern cosmology, continually refined by ongoing research and observations.

What is cosmic microwave background radiation?

Often called the ‘afterglow’ of the Big Bang, CMB radiation is crucial evidence supporting the Big Bang theory. Its slight temperature fluctuations, mapped by missions like Planck, provide a snapshot of the early universe and reveal details about its structure and evolution.

How to Observe Big Bang Day

Hop on a telescope
Even though you couldn’t possibly catch the cosmic rays of the universe, a glance at Saturn, Uranus, and some stars, is good enough. Mark the night with an hour-long extrapolation of the grand space, and marvel at all the secrets it is hiding.
Honor the science
Scientific curiosity has revealed many secrets of the world and continues to improve our lives in every way possible. On March 21, honor the people in STEM by acknowledging their contributions to society, and pledge your support to improving the scientific temper of your community.
Have a Big Bang Theory marathon
Talking about space and the Big Bang seems incomplete without mentioning Sheldon Cooper who has dominated the cultural ‘nerdy’ sphere for almost a decade with his witty comebacks. Celebrate Big Bang Day in literal terms by dedicating a day (or a week) to binge-watching re-runs of the epic sitcom.

5 Of The Weirdest Facts About The Big Bang

A universal experience
The Big Bang occurred everywhere simultaneously, as the universe has no concept of an edge or a center.
It’s inconclusive
The Big Bang describes the event that led to the creation of the world, but it cannot tell the exact starting point of the rupture.
Christianity and science
The first concrete conclusion about the formation of the universe was professed by a Christian priest in the early 1920s.
The name remains controversial
The name ‘Big Bang’ was coined by astronomer Fred Hoyle, who was against the concept and wished to trivialize it.
The gift of water
The creation of helium and hydrogen, which makes life possible on Earth, is credited to the Big Bang.

Why Big Bang Day is Important

A right step in the direction of discovery
Planck’s discovery takes us a step closer to unmasking the ultimate mystery of the universe. We celebrate the day to honor the dedicated scientist, as they work hard to reveal more secrets of the deep universe.
The search for truth continues
The Big Bang reveals that the universe was created as a result of a race against gravity. It is the ultimate origin story, presenting conclusions on where we are headed. The deeper the study gets, the more we can uncover the secrets ourselves.
We are all stardust
There's a sense of unison that is professed by the discovery of the Big Bang. It reminds us of how small we are, how our differences seem so trivial in the face of the great cosmic universe. It is a good reminder to never take ourselves too seriously because we are all stardust anyway.